If your needs are modest (and well planned out ahead) then load time on a PA1X is manageable, but one thing you need to get FOR SURE is a small UPS (uninterruptible power supply) like you use on a computer. You will lose ALL samples on a power-outage, and have to reload from scratch.
Bit of a dance-floor killer if it happens.
The only REAL trouble with sampled loops is... once you get used to them, and have a good library, you want to use them more and more..! THEN you start bumping into the load-time brick-wall. Arrangers tend to be used in a more free-form manner, so how fast you can load the loops for ANY song in your repertoire at ANY point in the show starts to be important.
But it IS the way of the future. Imagine an arranger with Stylus RMX as the drum engine... WOW
[This message has been edited by Diki (edited 06-23-2007).]