Maybe so, but I asked myself all the same questions as the OP coming off my venerable old XT350. I wanted dirt bike suspension for offroad, weight around 300 and enough power to make me grin in the dirt and not be a hassle on our crazy fast freeways. The LC4E has lived up to all of my expectations. I am not planning to unload the E any time soon unless I trip over a virgin 625SXC. But when I do it will for a 690. There is zero question in my mind about that.
KTM 640 LC4E
KTM 200 MXC