Robert very interesting graph ... in all hobbies you have different price points ...always have, always will ..if you collect vintage motorcycles ...toy trains look like chump change .. if you collect early Marklin most other toy trains are pretty cheap . The different fields attract all different walks of life ...some have private jets others take the bus ..all can share the passion ...but pursue it in their own fashion.
Auction houses need all price points to attract a wide audience ... so the high end items allow the auction house to carry some cheaper items ..but the high end pay the lion share of the over head to bring you the next auction .
Some drive a rolls, some a chevy ...we all share the same road and have to stop at a red light ... each to their own ability and interest ..if we all collected and could only afford the same things this would be one boring planet .
Cheers Carey