Trade iPhone 3G 8GB for PS3?

I recently posted an ad on Craigslist. I wanted to sell my iphone 3g 8gb for $300 or best offer. Someone replys to me that he wants to trade my phone for his 60gb PS3 that’s backwards compatible meaning the system can read and play ps2 games. I already own a PS3 80gb backwards compatible. I was hoping to sell the phone for cash but, if I did make the trade, I would be stuck with the PS3 and it might be hard selling it. His PS3 is in like new condition and retails in stores for $330 + tax refurbished. It might be cool to have another PS3 in my room to watch movies or play online with my dad(COD4) while he’s playing the other PS3 in his room. Now im debating if I should do the trade. Should I just wait until another buyer replys and buy my phone for cash?
Thanks.