I'm looking into buying my first REV with some of the deals that are coming out. There are still some new 2005s around and I was wondering if the updates made for 2006 are worth paying an extra $800-$1K or so for over a 2005 model. I can get an '05 800HO Adr for about the same as an '06 600HO (carb) Adr. Also, is there a noticeable power difference in the 800HO PT in the 2006s. Thanks.