Great hardware but narrow concept

The server of Fujitsu is, technically, a really great machine. It is quiet, takes up little space and is really fast. Well priced, it can often outperform the competitors.
However, he has a very clear disadvantage: it can only with the MS Windows Server, Red Hat ENTERPreis Server or SUSE Linux ENTERPreis operate. For the last two Linux distributions that may be about 270 per year to spend on an update (without support). For a larger operation that's fine too, for smaller companies, it is not acceptable.
If you try instead to install another Linux operating system, you will be sorely disappointed. After several unsuccessful attempts, I decided reluctantly to return the good piece.
Pity!