I run a 115 etec, amazing motor. Sips the gas, although you can't run anything but 91 oct in it. Hardly burns any oil and is super quiet. Maintenance free for the first 3 years and it fogs itself. These thing purr like a kitten and are super clean. The hole shot is amazing. I tallied it up and I figure I've saved over 1000$ in maintenance already. My first servicing on the etec only cost me $80.
I have heard yammys have fuel system issues, my bud owns one and has had it in the shop a few times.
All this and I only paid $8900 out of the box. Couldn't be happier.