I have a (comparatively) small handful of Busse knives - some get a lot of use, some will probably not get much actual use unless there's a zombie apocalypse, but I won't buy a knife that I'm not willing to use (so yes, I've used expensive custom folders to cut pizza), and I appreciate just how much Busse knives are built to be used, and abused. Their warranty is second to none, their knives are nigh on unbreakable, their handles are comfortable for extended use, (some of) their designs are awesome (opinions will vary), and their usual reaction to someone modding one of their knives is "oh, cool - how's that working out?".
If I had to thin out my collection, I'd likely keep the handful of Busses and Hinderers and sell off everything else, both high and low. Because the ones I'd be left with would handle every task, would be extraordinarily functional and reliable, and would be as works of art to those who can appreciate the beauty of tools. I'd get great enjoyment from using them, every time I picked one up, and I'd feel confident that I can depend on them to work every time.
(Hmm, I hope I'm not talking myself into getting rid of the rest of my collection.)