Dave Gilmour is flogging 120 guitars. For those of us with partners and a pluraility of basses, this is a chance to say "imagine how many he's still got if he's flogging 120". For all of us, it's a chance to say "HFM?" or "why are those estimates the same?".
The latter question is what entered my head when I started reading https://www.guitarworld.com/news/david-gilmour-to-auction-more-than-120-guitars-through-christies - the first item in the article is his black 1969 Strat, used on numerous albums for 15 years, and Live 8, and certainly significant, estimate $100k-$150k). But the second item has the same estimate, and is not only the 1954 Strat used on "Another Brick in the Wall (Parts 2 & 3)" and on stage, it's also Strat #1. You'd think the first ever Strat would get some extra value from that fact. And "a rare Gretsch White Penguin" ("incredibly rare" according to Christies, and indeed there's only 12 on Ebay) gets the same valuation - surely not as rare as the first ever Strat.
More from Christies at https://www.christies.com/features/David-Gilmour-legendary-Black-Strat-comes-to-auction-9637-3.aspx