Own a 572 ran a 462 for about a tank. The 462 feels more like a 60cc saw than a 70cc, yet it seems to have a little more power than the 572, and with a lightweight 28" bar balance seems fine. The 572 is a tank compared to the 462, seems like it would hold up to more abuse, balances well with a lightweight 32" bar, good torque. I will guess the 572 will be better liked out west with longer bars, as the AV and balance is probably better suited for that. For the average guy the 462 will likely be a better fit because of the weigh, does cost more though. That all said I still prefer the 7900 and 372, both are simple and reliable, so I see no clear advantage with the new models, other than like you said, to give something new a try.