I've been using LCD for many years, and would never want to go back to CRT for daily use... but nothing beats an Eizo Diamondtron, or a good Trinitron for classic gaming using real hardware. One reason being that LCD smearing is usually much worse at non-native resolutions - it's definitely not as much of an issue with WinUAE on a fast LCD. ;-)
Someone mentioned that the old hardware is dying off - battery damage, and leaking caps on the SMT boards. Another reason why a new CPU card for the classics likely won't happen. (I've had to significantly improve my hw repair skillz to keep the oldies running :-)) But there are still plenty of cool projects around for those interested in something different than (or in addition to) UAE... minimig, clone-a, the GB1000, etc.