Also have in mind that in Europe (as well as in the US) there are many ethnic communities, who want to be able to hear songs from their countries, not "generic" rock, pop, ballads etc.

Many musicians here have an arranger, (usually a Korg something, maybe a Yamaha A1000 oriental) and they use it to create a bunch of user styles reflecting ethnic "niche" music. Korg already has lots of Middle Eastern styles (who have ready most of the ingredients you need to build a so called "modern Greek" style), as well as killer synth sounds and they use them to their potential.

I went to a tavern-like place with some friends, and they had a small band: A stack of 2 keybs (a Korg synth and a Yamaha A1000 oriental) a guitar, 2-3 mics for the orchestra, and a bouzouki. Early in the night, while people were still eating, the guitar and the 1st voice were the main entertainment, along with some piano or pads from the synth. The Yamaha was nowhere to be heard. Then about 1-2 hours later, the time came for the hard stuff!. The Yamaha oriental was turned on, the bouzouki player took a seat, full accompaniment along with left hand bass was started and the synth was never heard of again.

My wife comes from a "kind of" minority. Their music is played with traditional instruments, most "modern" bands though have a PA1/X around... for style as well as lead playing. It does the job wonderfully and it doesn't cost as much as 2-3 band players, nor turns up drunk.