I say nay. As 2fast4u mentioned, you may regret selling it a long while from now (as I did, selling my SNES, which I bought another one a couple years back, and N64, which I also rebought not long ago). And hey, if you don't use it, just unhook it and put it away somewhere. Games may come out in the future that you'll be interested in, and it'll just be more expensive buying a new PS2.
- Modem