I live in Sherbrooke, Quebec (150 000 of population). We have 4 average size music instrument stores. A lot of guitars, bass, drums,etc but few arrangers. One has 3 or 4 PSR, the 750 being the most expensive. Another has sometime a PA3X and some used ones mainly Casio. The two others don't have any.

But.... there is another store that have been selling pianos for the last 50 years and that carries from PSR-e4xx to Tyros all the time and selling a lot. So the question is perhaps where the arrangers are and the size of the wallet of the usual client.