beryllium vs diamond

I think ESL's are an inferior technology.

That's your opinion

Hey smodtactical, the best value by far is the 3.7. Fabulous speaker for the money. There is no dome tweeter as good as the Maggie ribbon. 

Oh kosst-amojan, there is no question that ribbons disperse better than many if not most ESLs. But if the ESL is designed correctly this is not a problem. Everywhere else there is no comparison first because there is no crossover.  Second, the diaphragm has less than a 10th of the mass.
Third, the diaphragm of an ESL has uniform drive right down to the molecular level and is push pull throughout. 
If you were to sit down in front of Soundlabs Majestic 845s driven by say Atma-Sphere MA-2s even without subs you would be dumbfounded. Your response would be, "How can a speaker do that!" You would probably even wet your pants or diaper or whatever.

georgehifi, it is not a matter of opinion. That ESLs are better is a matter of fact for the reasons I stated above.  I love Maggies but they can not hold a candle to a big ESL.