My friend has a 60gb PS3 and he wants an 80GB one instead, and I want to buy one, should I buy his 60GB?

May be...

I was saving up to buy the 80gb PS3 anyway, and I could get it for about $300 from him...

Yeah, go for it.

But if just wants a bigger HDD, tell him that he's losing out. The 80GB's are worse than the 60GB's, old and new. He can swap the hard drive for $100 from newegg.com

As long as he has kept it in good condition I would say buy it. Considering he wants $300 for the only console with 97 to 99% compatibility with PS2 games, it a pretty good deal, especially since 60gb's are no longer made. As someone else mentioned your friend is basically going backwards, he's buying a console with slightly more storage but losing the best PS2 compatibility of any PS3 model, when all he had to do was put in a larger hard drive, which is allowed by Sony and is cheaper than buying a new PlayStation 3. But hey, it's his loss and your gain.

If he is selling it to you, then go for it. Mainly because the 60GB version is better than the 80GB because on the 60GB version, you can play all PS2/PS1 games instead of the 80GB version where you can play most PS2/PS1 games.

It's a bit pricey - I would haggle and get it down to maybe 250. But if not, it's a sweet deal. Your friend's making the wrong decision seeling his 60 to get an 80 gb though, cause all he has to do for more memory is buy a new HDD. He's downgrading, seriously.

If he has taken care of it then yeah I think it would be a good choice. Saves you money. but the new 80 gigs are 399.99 doesn't play PS3 games but it has the dual shock controller and a warranty

It's not a bad idea to buy from a friend. At least he can guarantee to you that his 60GB is still in good running condition. Just maybe negotiate for $250.

i honestly wouldnt want to since the price is high from him and i dont know the condition, but i would not get the 80 gb trust

no over priced its used its only worth half value buy a new one then you know what your getting and 20 gigs more :)

I agree with KyledKat and LFT here. Go for it.