RE: buying a new one
No Fastguy is 14, never ridden before, and wants a 500 but says he is geting a 250, The ktm 250 sx you can buy anywere but not with those flames on them that was probably done custom, that bike looks like it set up for freestyle, the other bike, the ktm 640 is cross country/enduro bike basicly its a street bike that you can ride on fire roads, If you are looking for a ktm they will be alittle more money and there not any better than a YZ or CR personanlly I dont think they're as good as a yamaha or honda