Good luck with the search i'll keep an eye out too, as I routinely search "klipsch" just to see whats out there and what it's going for.
I've had forte II's for about 4 years now, and while not LaScalas, they do share some similar qualities. The pair I bought had titanium tweeters and updated crossovers (crites). I've used high power solid-state as well as low powered tube amps, both with good results just a different presentation. I do tend to prefer a tube amp with these, it just makes them more holographic/3-D, but that is not to say a SS counterpart couldn't do the same. Synergy plays an important role w/ these, more often that not meaning mellower components upstream (for me).
I have other speakers as well, and quite honestly they do some things better - like imaging, bass control, timing.
The one thing though that continually strikes me about Klipsch speakers is their midrange and treble detail. A lot of times where other speakers tend to shove things like background vocals/keyboards/cymbal decay/ext too far back in the mix to my ears, klipsch tends to bring it to the limelight. This can also equate exaggerating certain passages too. To me they are just more "live" sounding and fun!
Have you had LaScala in the past? If so, what kind of amplification do you use? What were your experiences?
