I think that may be good, esp. for more obscure/less popular types of equipment
but not too many sub sections please! Too many can be too dispersive.. And it won't be followed by noobs/illiterate/oblivious people that don't know what netiquette is, how to post on forums and such things... you know the kind that will post on most active section because they think that their thread will be seen first
At least THIS forum is moderated so the thread can be moved or deleted..
Anyway, i'm with the "Yes, but just a couple of major categories" crowd.
Maybe something like
-Oscilloscopes/Generators
-SA/RF (Also RF Meters?)
-Power Supply/DC Load (Also Meters?)
-Multimeters
-Vintage equipment (why not?)
But one thing for sure: DON'T do a sub category for every manufacturer. Every mfg in the same category will promote confront