I’m convinced at least half of these “is it real or fake” posts are from people making fakes trying to hone their craft/see if their current model can pass a litmus test.

I’ve done this exact thing…sell off a versatile collection of watches to fund a more singular “grail” purchase. In fact, I’ve done it twice (once being for the BB58). In both cases, I found that a one (or even two) watch collection falls short of feeling well rounded, and I quickly get annoyed/bored. In both cases I reversed course, sold the grail, and diversified my collection again.

Like you, I have a number of expensive hobbies, and I just can’t justify tying up more than several thousand in watches. So, I’ve end up determining that, for me, a modest, rounded collection of watches in the 500-1500 range is where I’m comfortable. YMMV, of course, just sharing my personal experience.