Hi DNJ
Its amazing how many people still think the Wersi is new untried technology, whereas in fact its been in use for more then 8 years, (This is the amount of time that Wersi OAS instruments have been played live, from small gatherings to football Stadiums, Home use to Concert Halls, both by top artists and the regular gigging musician, all instruments being transported from Gig to Gig) so I don’t know what you are worried about.
Just pop along to your dealer and try one, if you don’t like it, stick with what you have got, (You won’t loose anything but a bit of time and gas) if you do like it, think of all the new musical avenues open to you.
As to learning to use it, then it is no different then going from a Yamaha to a Korg or a Roland to a Ketron etc.
As to Old School then Yes, this will always be a problem, but please remember that all arrangers used to be classed as toys for the 1 finger brigade, and not worthy of any consideration by a Pro Player, however they are now an accepted as part of the establishment.
Enjoy Life, Play a Wersi

Bill