No Castlevania 3, no buy.
Otherwise a pretty good list, but only of publishers still around (Nintendo, Capcom, Konami, Square Enix), and all of these games are already available on Wii/Wii U, and frankly, not terribly hard to emulate (probably why Castlevania 3 isn't included as it is hard to emulate - but it does exist on the VC, so ??). I'm guessing its the same emulator that Nintendo uses for the Wii and Wii U. Too bad they didn't try to get any other less known classics like The Guardian Legend, Zombie Nation, Abarax, Faxanadu, Crystalis, Wizards and Warriors,...
Looks like a great novelty gift for someone who doesn't have a Wii or Wii U. The lack of expandability sucks, but understandable given it's intended audience. Seems like they are going for people who played in their youth and didn't keep up or something to give to their kids without the stress of current generation consoles (lack of online especially), but compatible with current TVs.