heres another angle on it Taike.
The majority of arranger players are more mature (shall we say) and so they tend to have more disposable income than real strugling younger musicians. For them the purchase decision is not going to have any real impact upon their standard of living and they may not have had to sacrifice in the same way a young musician would have to in order to buy an instrument that costs the same as a small car !! So they can swap and change more freely simply because they can.

However i believe that this swaping and changing has a direct impact on their ability to create and improve their musicality because so much time is spent with their heads in a manual or asking questions about the basic operation of the instrument, saving registrations, transfering setups so that they can play the same old songs they played on their last instrument, trying to figure out how to make the latest toy do EXACTLY WHAT THEY TOOK 3 MONTHS TO MAKE THEIR LAST TOY DO ...... As a rsult arranger players tend to spend more time "tweaking" new instruments and "making it their own" rather than actually playing and developeing an affinity with the instrument. I cannot believe that anyone can have truly explored the potential of a modern day arranger in just a couiple of months let alone a few weeks.