Some top yesteryear speaker models are still made today. If the same speaker has been in production for more than a decade...then go for a second hand model of that (it will be old, relatively cheap, tried and true)!
As for speaker designs that constantly change, one can only wonder why they keep getting it wrong or if design changes are driven by marketing hype rather than top sound.
As for speaker designs that constantly change, one can only wonder why they keep getting it wrong or if design changes are driven by marketing hype rather than top sound.