I'm getting a little late here, but I'll pass along something a Korg rep told me- "If you want to play with your computer, get into computer based recording. If you want to play music, get a dedicated hard-disk recorder."

Of course, I chose computer based recording. Was it worth it? Probably. But, the learning curve is long and steep. And, it likely will not be tolerated that well by those around you.

Good luck.