I posted this question in another forum but I was interested in hearing the stories from my fellow Leicaphiles. <P> A member of this forum once commented that you should never sell a Leica Lens as you will always end up buying it back again in the future. <P> At the time I read that observation I didn't realize that if I had heeded this advise it would prove to be the most valuable thing I took away from the forum. <P> But I didn't heed that advise as I suspect many others have failed to do as well. <P> So at the end of the day. What piece of Leica gear did you sell only to come to regret the decision and then proceed to replace it again or search endlessly for a comparable replacement. <P> If there is an interesting story behind it throw it out there. <P> Who knows yours may be the story that convinces someone to avoid the same fate.