..... - the CM15A was introduced in 2004. That's only 14 years ago. :-)
I bought a
CM11A soon into my entry into X10.... and
was miserably disappointed with it. I almost just gave up on X10 and Home Automation altogether... out of frustration.
In 2006 (I believe) Bill posted of his BVC software... which enabled Voice controlled Home Automation using Windows XP SAPI5 voice recognition software. But I needed a CM15A to give it a try. After my experience with the CM11A (which I never got to work).... it wasn't easy for me to make that leap.
It was after buying the CM15A (in 2006) that i learned
it was a phase issue that had hindered my setup. After adding a phase coupler, more AHP software, a 24/7 Home Automation PC, BVC....
and more my setup bosomed. It both seems like yesterday.... and
a lifetime ago.