I returned ODST today. I was anxious because it was 2 days outside of the return threshold, but luckily, they accepted my excuse and gave me a credit. I'm surprised they accepted it - I was still half asleep after staying up until 3 am and my deception skills weren't honed ready to strike. 
 
But stay up 'til 3 am I did. I was going to call it enough after doing a second Firefight mission on Rally Point Night the night before for two and a half hours solo, but my friend persisted, telling me that we "could get the audiphile achievement in no time!" By no time, I think he really meant 4 hours. It was 11 pm when we started. To my knowledge we were simply going through the Mombassa streets and collecting all the audiophiles. However, the fact my friend conveniently left out was that we would have to complete ALL the campaign too in order to get the last one! 
 
Getting the files were pretty easy - well with him it was, since I could never find my way those damn blasted, night-time streets - all you have to do is look out for flashing sirens or phones ringing and go through all the sections until you have 29. The last one is in Data Hive. At the same time I got my Naughty Naughty achievement (mmm, overcharged plasmas are my friend!). I went on foot, which took forever, while he rode around on a mongoose. 
  
In the end we breezed through it, but the campaign took foreverrrrrrr! Well maybe it didn't, but I couldn't tell since I was drifting in and out of consciousness. Only the intermittent sound of "Wake up you douche!" beaming through my microphone keep me going until the end.I got the pleasure of collecting the last file however - 75 GS was well worth 4 hours. Considering I spend upwards of 5 hours on 20 GS, it was comparatively enjoyable. 
 
So now ODST is safely returned and I have around 300 GS extra locked away. With $56 credit, there's not too much else I can buy in the store, but it sure can help fund a newer game. Alan Wake, Red Dead Redemption, Fallout, Batman - so many titles to choose from, but none I can clearly see is the one for me. Any suggestions guys?

I returned ODST today. I was anxious because it was 2 days outside of the return threshold, but luckily, they accepted my excuse and gave me a credit. I'm surprised they accepted it - I was still half asleep after staying up until 3 am and my deception skills weren't honed ready to strike. 
 
But stay up 'til 3 am I did. I was going to call it enough after doing a second Firefight mission on Rally Point Night the night before for two and a half hours solo, but my friend persisted, telling me that we "could get the audiphile achievement in no time!" By no time, I think he really meant 4 hours. It was 11 pm when we started. To my knowledge we were simply going through the Mombassa streets and collecting all the audiophiles. However, the fact my friend conveniently left out was that we would have to complete ALL the campaign too in order to get the last one! 
 
Getting the files were pretty easy - well with him it was, since I could never find my way those damn blasted, night-time streets - all you have to do is look out for flashing sirens or phones ringing and go through all the sections until you have 29. The last one is in Data Hive. At the same time I got my Naughty Naughty achievement (mmm, overcharged plasmas are my friend!). I went on foot, which took forever, while he rode around on a mongoose. 
  
In the end we breezed through it, but the campaign took foreverrrrrrr! Well maybe it didn't, but I couldn't tell since I was drifting in and out of consciousness. Only the intermittent sound of "Wake up you douche!" beaming through my microphone keep me going until the end.I got the pleasure of collecting the last file however - 75 GS was well worth 4 hours. Considering I spend upwards of 5 hours on 20 GS, it was comparatively enjoyable. 
 
So now ODST is safely returned and I have around 300 GS extra locked away. With $56 credit, there's not too much else I can buy in the store, but it sure can help fund a newer game. Alan Wake, Red Dead Redemption, Fallout, Batman - so many titles to choose from, but none I can clearly see is the one for me. Any suggestions guys?

I don't get what you mean by "returned". Like you bought it, played it, and returned it? Cause we totally can't do that where I live.

I'm really enjoying Alan Wake but I'll admit that you might get more out of Batman: AA. Depends on what you're scheduale is right now I suppose. B:AA can take awhile especially if you're a completionist whereas Alan Wake's combat is a bit more ... Repetitive dare I say?
I can't speak for RRD but I hear it can be extremely long (same with Fallout 3 which I still haven't finished) but maybe that's what you're looking for.