Its not always the big 3 that produce the innovations in arrangers, (The Wersi OAA (Open Art Arranger) is probably the most advanced arranger section out there, as well as being dead easy to use) but they are the only ones that have the finance and muscle to be able to set up mass production, so to provide thousands of dealers with products at relatively cheap prices. (Selling thousands of boards at cheaper prices soon pays off the R & D costs)
If Wersi had the same resources as the big 3 you would probably find their prices would easily undercut the big 3. (As well as being more advanced instruments)
Until then it’s a matter of staying with the higher end market. (Home users tend to have more disposable income the most musicians, which is why TOTL boards easily sell)
Enjoy Life, Play a Wersi.

Bill