Paul,
Regarding them old tumbler type switches,
We still have them over here, in two forms.
The first one being in houses that have never been rewired since they were built, in the mid-late 40's and the switches are rated at 5Amps, the fun starts when people hook a bank of fluorescent lights up to them.
Secondly, these types of switches are now becoming "trendy", again, over here, people who are restoring houses are lapping up these switches and even PDL have brought out
a range of brass type tumblers rated at 10A.
Give the people, what they want, I say.