Nothing inevitable or natural about it, akptc: others feel the same about Hasselblads, Linhofs, Nikons, Contaxes, Alpas -- you name it -- with equal justification. Wanting to try the real thing after having used the imitation makes sense: though not so much if the imitation is close. As for "the one", that argument holds if your photographic work is of a limited kind. For extreme close-up and macro and micro stuff, for architectural work, for photographing lions in the wild, an SLR makes a damn sight more sense. Yes, Leitz made accessories for nearly everything: but for those same things, an SLR needs few or none.