I believe the MCAS website advertising that $695 is inaccurate. I tried to buy some at that price a few months ago and they couldn't do it. Didn't even have those units in stock at all in Australia. They did however steer me to look at Cardo Smartpack duo. I was hard pressed to find a difference between the two units. Smartpack used to only connect to 4 riders in DMC but a recent firmware upgrade has increased that to 15, just like the Packtalk.
MCAS ended up supplying me the Smartpack duo for $700 and I'm so glad I didn't wait and fork out more $$ for the Packtalk in the end. And the Cardo is a great unit, so much so that my best mate is thinking of upgrading from his Sena's to the Cardo's. I would recommend looking at the Smartpack as an alternative to Packtalk.
Will and Katie.
2018 Bobber. Thunder Black Smoke. Fox shocks, reduce reach bars and Emgo slash cut slip on pipes. Soon to come: PVCX and maybe a zippers intake.