For $29 or less, I'd be happy with my slotradio card purchase, but $39? Nah, msrosario is right, I myself am not comfy with that price.
Nevertheless, the slotradio card I bought, with all the widely publicized limitations it has, proved to be worth it. The music selections mostly are good, and I never had a time when I needed to skip a song. The convenience of having 1000 songs at your fingertips unlike sourcing them from everywhere is, in my opinion, nondebatable, more so if you don't have the luxury of time. Besides, I'm quite not feeling or a fan of the much touted utorrent etc., thus my slotradio card made things just easier for me.
And I'm planning of getting another one soon, probably my second and last unless they lower its retail price.