+ 100 ... electric start is the only way to go. You never want to be "that" guy on the trail with your buddies and you can't get your bike kicked over
Ride several to see what feels best to you and make sure you know why your buying one ... what kind of riding you want to do. I love my WR250. I was able to so some free "mods" to it after I bought it that made more YZF-like but with more torque and softer suspension. Plus I picked up a lowering link and dropped it down almost 2" so that helped too.
You'll probably notice that your dirt riding will improve your street skills too ... good decision to get dirty!!