What dealership are you going to? I just bought a new 650 from Kelly's a few months ago. You should be fine on the 650 you sound like you have the right mindset at least. Just be aware that it does have a lot more potential to get you in trouble with the throttle than a 250 would. I rode a 250 for a while from Queen Creek to Mesa for work on the US 60 and well it was pushing it (hence the upsize to the 650)
I work about 1 mile from Kelly's if that is where your picking up your new 650 let me know. Also PM me if your ever interested on going for a 650 ride
