Yes, Ooma was fully free during the first year, other than the device which is usually over $200. The second year we had it went from free up to around $13 a year. Still not bad and we were OK with it. Then last month Ooma said they would start charging us $4 for fees + taxes per month when my contract expires. That was enough for me and my brother always loved his MJ, so we decided to go with it.
If I understand correctly, with MJ, they pay the fees too but just charge everyone the same flat annual fee. I imagine that's also why the MJ+ adopters are probably paying more than the original MJ owners (the overall fees are going up in general for MJ).
Yeah, I noticed this also. I'm surprised they don't allow a configuration of the number of rings.
The conspiracy theory is that MJ wants every call coming in to a MJ customer to be answered. This allows them to maximize the fees they collect from other phone companies to connect calls on their network.