I don't believe many drummers generally go for the 3 floor tom thing, so hardly anyone will be looking for the Williams set. Colourwise as Purdie said the Yellow is also a bit niche.
The Bonham/Bonzo thing kind of annoys me but it tends to be any kit with a 26" 14" 16" 18". Followed closely by being an Orange Vistalite. Obviously Buddy Rich played a similarish thing but it seems it has to be WMP as long as at least the BD is 24". And Ringo Kit's must be always be Ludwigs in BDP.
For me plenty of other Big Band players inc Gene Krupa played WMP kits. And plenty of other Rock drummers in the late 60's and 70's played those big 26" drum kits. But thats the way it is. One thing I know, I won't be having a drum set-up named after me. :(