When I saw the "new" '05 610 I was excited untill I read the weight, and then sat on one at the dealer. The engine in the 630 looks great, but for 60+ lbs. I'd rather keep kick starting my older models. Plus, most folks put single exhaust on their Huskys in the '90s to save the 7-10 lbs.
Hell my old school ATK has the button, holds 3 quarts of oil and is WAY light than the new Huskys. I do wish it had the same tranny though.