This is always choice between costs and profit.
For my opinion the RPI is suitable for the project, since it costs not so much and uses a low power. It could buy itself within a less than a year.
I personally like the Odroid HC2 design:
or
I would like to build something like this, but my available Ethernet outlets not in the good places:
- one in bedroom;
- the second in the guest room/kitchen 1.5 meters from the floor (there is TV
, which is not used and collects the dust ).
Perhaps I could place it behind a TV 