In princible, there are just three kinds of breeders:
Surface breeder as well as cupboard breeder are available with or without automatic / semiautomatic idiom.
With both models one can reach excellent results if the quality of the eggs and the care are right before and during the brood.
pro and against
+ Little one, hence, also in the sitting room possibly
+ Much more favourably than cupboard breeder (from about 120€)
-in a surface breeder the number of the eggs is limited, because we have at disposal only one level (with quail's eggs for the amateur holder no disadvantage).
- surface breeders are most from Styropor or plastic. Cupboard breeder rather of wood or metal.
- To clean worse (at least the Styropormodele).
Cupboard breeder / engine breeder:
+ A lot of place
+ Long livingtime
+easy to clean
-very expensive (up to 300€)
Here on minibreeder I would not like to come, because I hold them for toys. To incubate 7 eggs makes no sense. With a bad conception rate there slip three fledglings. One or Two are not maybe developed completely and die, then one must draw up a single fledgling. This is senseless not only Economically, but also is not appropriate to the species. The fledgling would also presumably come.
I would leave here also the possibility of the do-it-yourself construction not unmentioned one. One should make this, nevertheless, only if one has technical understanding. There are cultivation instructions, for example, also with Youtube. I myself hatch with a do-it-yourself construction. Costs lie with about 50€.