Good input guys. Looks roughly like four in favor of Sim with Proth going for the Ayre and Tboooe more or less neutral. So if the K1xe is a bargain at $4500, then possibly the P5 or P5LE might be even more so at $2500 to $3000, older Renaissance circuitry notwithstanding. (Technically, this amounts to a departure from the thread topic, but I personally find it most helpful.)
Anyhow, good thoughts. It seems that no matter what question one has, a few people on A'gone have had direct experience with what you're talking about. ...and as importantly are willing to share. Great forum, site, and a pretty great group, we are. Thanks for the ideas, guys.