I tried to check this on Xometry and the cost went from 4,83 € for FDM (quite overpriced unless they print with 0.05mm layer height) to 35,88 € for a tiny insignificant part of a much bigger print.

At those prices just the prototype alone will cost as much as an X1C. It's expensive enough that you'd rather print the prototype using an at home printer using random filament you have lying around and only print the end result once you're done prototyping.

Also there are no multijet fusion print shops "in town". That's an incredibly niche type of business you would expect in larger cities and therefore they would be priced accordingly.