If you buy the best example of each type they are all outstanding. So if we look at it in reverse , meaning what is the best cheap tweeter, it boils it down to something more fundamental relating to design. The best inexpensive tweeter is the ring radiator. Even cheap ring radiators perform extremely close the the best examples.
They really have little character other than transparency and wide dynamics. I have never seen someone say, oh I can hear that ring radiator like they frequently do with metal domes hardness, soft domes smoothing over or ribbon shimmer.
To me the issue is we have become accustomed to hearing a certain signature and have developed a preference for them.