In that scenario, it would come down to how much speed you want at the Joey locations vs. install cost. The Joey 2 that comes at no extra cost with H3 installs are a bit faster than the original Joey 1, but still considerably slower than you'll experience at the H3 location. Conversely, it is reported that the 4K Joey is nearly as fast as the H3 performance-wise, even if you don't want/need the 4K capability; however, they are supposed to be an add'l $50 each. Some have had luck getting the $50 fee waived for at least one of them.
I have 2 Joey 2s along with my H3. The Joey 2s are not as fast as the H3 but that doesn't mean that they are tremendously slow either. The only time I really notice slowness is when I am using Netflix on the Joeys.