NEST Doorbell Camera

Already considering moving away from SS as I have 6 legacy cameras and will probably add more.  I only want them to be accessible from the SimpliSafe app.  I'm good with the SS sensors and alarm, but I'm not replacing all my cameras.  I'll probably keep my SS a bit longer and then get an autodialer, backup battery, cell phone transmitter, third party wireless sensors, etc and my legacy cameras and drop SS.  I understand controlling your ecosystem to ensure quality, but forcing me to use your high cost cameras and throw my legacy cameras away does not seem like  SS is customer oriented.  I'll pay a reasonable amount more for SS cameras, but 4x to 5x more is too much.  Eventually a competitor will come along offering more expandability.  SS can either grow or be overtaken by an upstart.  I'm very loyal when a company is loyal to me.  When not, I'll eat the sunk cost of existing hardware and replace what I have.  I have monitoring from SS at ~ $30 per month.  We have set off the smoke alarm twice in the last 2 years, so that  works out to $360 worth of service and 5 minutes for each time SS had to do anything (call us to confirm what was going on).