They ability to train is very important, and pulling up previous recordings make that possible. We enjoy that feature on our SAC systems I have train class on Monday with 6 new people. We also use previous Praise and Worship to set monitors after the Worship team leaves.
As for not seeing a SAC system that looks like it might work. Looks can be decieving, its the core of the build that matters. If I was in your area I would drop off a system for you to try out for a couple weeks or take a look at my web page, pm me for the address if you would like to take a look.