Consoles drive and constrain game design in several important ways. UI is a big one (how many management sims are playable with a gamepad?), but RAM is probably even more important.

The demand for ever-fancier graphics on aging, static hardware means that every other aspect of a game suffers. Smaller levels, fewer options, simpler AI, etc. This is why the next generation of consoles is going to be such a big deal for anyone who plays major cross-platform games.

For games that require a more complex interface, there's still a thriving PC-only games industry. And now Kickstarter is helping to power it.