I'd go for it But I'm an enabler who desperately wants a new mountain bike, anyway. If you fell in love and the bike's the perfect fit, what more are you waiting for? I doubt you're going to buy it, take it for a ride, and then decide you don't like riding any more.

If you don't think you're likely to race, things like weight, etc. aren't a huge concern so you aren't likely to want to trade up immediately. You can always upgrade components down the line if you aren't happy with shifting, brakes, etc. And the Myka is a nice enough ride that you aren't going to decide that mountain biking is miserable and painful and you hate that you ever tried it. Sounds like the perfect choice to me!

Though if you stick around here, bike envy is inevitable