the cost thing isnt the only good reason to go for an earlier bike to start off with.. an earlier bike will still do all the things you ask it to do and more, but the point im making and so often gets snubbed off is, the earlier bikes will progress you as a rider quicker..
eg go to the track in a nissan gtr and you can go fast but the car with all its refinements is doing most of the work for you.....
so when you decide you enjoy it and can ride comfortably, imagine what a leap up it is on a lighter,more nimble, refined machine.....
imo