Well if you have to have a beemer, well, to each his own.
But if you just want to ride, the old Yamaha XT's are damn good bikes. I bought my 85 XT600 in 2002, paid $700 for it, $600 for the shock, $200 for the Supertrapp. I bet I have just as much fun on it as I would a beemer. But I ride it...