[Aeraaa]

Well the Greek vehicle is indeed a budget solution, using two existing pieces of equipment to make an upgrade. It is an excellent solution for the environment that it is supposed to operate (a Greek island) and limited elsewhere. In that department yes, the Ukrainian version is more versatile, but more expensive and tbh if recent wars showed us anybody is that glorified tin cans like BMPs have a short lifespan in the modern battlefield and thus it is better if you don't spend too much money on them.

BMPs were never popular outside the islands mainly because their only role is infantry support against an enemy light on mechanization (as it will be the case of an invader on an island, at least in the beginning). Given that role they have their uses, apart from that you shouldn't rely too much on them.