Attorney Ken Kirschenbaum guesses ~18x, nothing that there are many variables:
Some DIY contracts are for a term, 3 or more years, and others month to month. DIY systems may require pass-through the manufacturer's portal or receivers, and will not work without that, so the system becomes essentially worthless if the RMR is canceled. Other systems are self monitored through the internet and therefore no RMR for that feature.
A valuation of ~18x implies a drop of 50% or more in valuations relative to traditional alarm account valuations. That is a multiple of annual sales of 1.5x, getting close to the valuation of project based integrators.
What do you think? Concerned? Not?