I have ridden MotoCross since 1971. Needless to say my machines were always 2 strokes Suzuki's. In 08 I surrendered to the hype about 4 strokes and bought and 08 RMZ250. Great looking bike, its like riding a 2X 6 piece of lumber, still a nice bike.
One draw back, maintenance on it has cost me more in 4 years than my 1998 RM-125 has in 14 years....and I can turn a faster lap on my RM-125. If I could turn back time to 08, I would have taken the $6380 OTD on the RMZ and bought the 08 RM-250 2 stroke. I would be a much happier Vet rider on the 2 stroke, much more awake and excited. I kind of compare 4 stroke to Nascar's , and 2 strokes to Formula One cars. I like the acceleration not to mention the 2 stroke affordability.
Not trying to start any problems, just my opinion. I'd might even trade my like new stock low hour (4 hours) 08 RMZ-250 straight across for an 08 RM-250 that was in the same like new stock shape and low hours.