@docmarius
Why You assume that every people has only smartphones with LTE? In my opinion most people buy Mikrotik routers because are cheap and powerfull.
If You have money You can buy NGF like PaloAlto - mcuh more stable and reliable than Mikrotik in my opinion.
Consider that - even when You have router for $$$$$$ from time to time (Do You know Morphys low?) You need to connect to them for emergancy purposes so in my opinion is good to have "backup" connection for You devices.
Second problem - even if You have GSM modem mostly GSM operators doesn't allow to estabilish remote connection to You modem from internet - this is another problem to solve ...
I'm looking for cheap solution that allow me to remotly connect to at least two console ports - it could be analog or GSM connection - do You know such solution. Problem is that most cheap routers have only one Serial port.
I know solution like Poseidon
http://www.hw-group.com/products/poseid ... 02_en.html - this isnt for my wallet
Regards
SLawek