Unfortunately, every time I mess around with a friend's Vita or a sample at a GameStop I do feel a bit of regret that 3DS has the games that I want, while the only thing I want from Vita is Persona 4 Golden. It really is a fantastic piece of hardware.
There's just nothing to do on it.
There's a good reason why people fall back to the "it's all about the games" defense. Why else would one buy a game system? To watch TV? Take photos? Hell no. It's to play games. And there's just one game I want to play on Vita, compared to 3DS/DS library.