Forgive me for pointing this out, but my CS generator consists of 3 batteries (<$5), a maple leaf coin (<$20) and a piece of silver rod from a roll 50' long that cost $35 in 1985.
I'd estimate the cost of my CS generator that makes all the CS water I need to be ~$26.
But, don't let me stop you from wasting money when there are more economical ways of creating CS, that would be illogical !
Sorry, but it's hard on my neck to try and listen to people on high horses.
Makes me a little cranky.