Great to hear from another satisfied CAS customer. I did my FAA Commercial, Instrument, Multi-Engine, CFI and CFII there and can't recommend the place highly enough, so it's great when someone posts on here singing their praises.
I considered setting up a similar thing here in the UK (as I'm a CRI - so it'd be ideal for me) at Breighton where I instruct, but there just doesn't seem to be the demand for it - which is a great shame. So I try to throw a few extra bits into rental checkouts etc, and it seems to go down well. Sadly though, some people just aren't interested and would rather fly around in a mundane manner well within their comfort zone and their self-imposed limited boundaries. I might just advertise a similar course next summer and see what comes of it.
Can't wait to go out there in February to put a few hours on their cub's and Lakes'.