I finally made the move from 2 strokes to 4 strokes last summer, and went from the CR250 to the XR600. The 600 wasn't really the bike I was looking for, as I am only 5'9" and the 600 is HEAVY, but my brother had been riding one for almost a year and he loved his. Reliability was high on my list, as I hate fixing motorcycles, and I simply can't afford to sink too much money into a motorcycle (my Charger takes most of it ). I looked at a DRZ, but it was an older "S" version and was sold 2 days after I saw it. Finally, a 97 XR600R came up for sale through another friend, and at $1,000, it was too good to pass up. My first summer on the bike sucked. I dropped it a lot and getting adjusted to the weight, height, and gearing was rough. I decided to buy a lowering link, gear it down a touch, and buy some new tires, and so far this year, the bike has been pretty much a joy to ride. I have done a pretty wide variety of terrain on it now, and with this setup, I can't really understand the need for a bigger thumper. I have had no problems with it. It starts easy and pulls hard. I can't see myself upgrading this machine for a long time. So, anyone else feel the way I do? Do you have an XR600? Is it your primary bike? Is there THAT significant a reason to move up to the latest XR650? Who still enjoys this old school machine?