The only games I was going to bother with were TG-16 ones because I couldn't get a decent emulator running on my PC. Now I've got the full version of magicengine for classics like Bonk and Photograph Boy, and got CD games like Dracula X working too (Which I doubt will be available through VC anyway). So I don't think I'll bother with any tbh.
On a PC you can play with the SNES, N64 or PSX controller (I wouldn't bet on it being too long before someone made a Wii classic controller -> USB converter), use save states, play online multiplayer, get games from other regions and fan translations of japanese games, use a TV out to play on your TV, improve the look of the games with things like anti-aliasing and SAI engines, all without having a crippled selection of games and having to shell out for them. I can't see any reason to use the VC emulator over PC emulation at all.