I have one that chages every time I find something interesting. Once it was a Single speed (a mongoose Maurice, quite nice), other a Grisley or BH Mega, other GT timberline 1997 (the last one ) and now it will be a Stumpjumper M5. And perhaps in several moths a gravel. This last one has no rules, only not expensive components and 2nd hand is allowed to reduce cost. It is fun to built it and test it. If I like I keep for long time if not goes out fast.