If you can trade it then why not? Or sell it on ebay since it's B/C you'll get a fortune for it.

Or if you're looking to spend money get a 360 too!

Right Gamestop is offering an additional 50 bucks for system trades that means take the standard 150 plus 10% for member card so 15 and add 50, which leaves you getting 215 for your system so the slim would only run you 85 dollars.

I' m having a first shipment PS3 60 GB from Europe and never had problems with it (3/4 years). Selling it on E-Bay would be worth some money as someone before me says.
I think I'm going to buy a Slim and keep my old PS3 in a air free , 24 degrees temperature room and sell it after 60 years :D. Anway , now you can still get some money for it. When it's bricked , it won't be worth shit.

The Slim offers less than your current PS3....why would you want to trade it in?

I have the 80gb B/C MGS4 PS3 and its working like a charm. I would never trade it. I'd get a slim in the future but never trading my current.

that is actually why you should have used it... play all the great PS2 games...

Even so, the PS3 slim gets you nothing.  You lose the BC in the off chance you ever do want to use it and you lose 2 USB ports for...what?   A warranty?

Whether your current PS3 breaks or you buy the slim you're going to lose money (especially since you're on the suckers that buys the Best Buy warranty, lol) so you might as well wait. 

Right now it just seems like you're trying to justify you wanting a Slim because it's a Slim even though it offers you nothing.