I'm using the Epson R220 myself, and I love it. The only problem I've ever had with it was that on some discs the ink might scratch, but you'd find this with any printer. Some ink jet discs just aren't that good. Personally, I shoot a quick layer of (plastic safe automotive grade) clear coat finish on them, for extra smudge protection, but you really don't need to do this. I'm just OCD. X-D
Epson still sells the R220 on
their site for $100 bucks, but I got mine at Sam's club for $80. If you're a Sam's member, check to see what they've got at your local club. Last time I was in my local club, they had pallet loads of 'em.
I like the thermal printers, but they're just too slow and limited for my taste. When a thermal printer comes out that can print one full color DVD in under 60 seconds and costs less than $100, I'll be the first one in line to buy it. But for today, inkjet is good enough.