Absolutely true. I would take it one step further - don't even worry about making something people want to play. Make something YOU want to play.

The best experience of my life has been making an MMORPG per that motto. It's now at a point where I get completely absorbed playing it, to the extent where I forget that I'm playing my own game. It's a really awesome feeling.

I don't have any expectations on making money off it, or even have players at all. That other people seem to enjoy it as well is only a bonus.