I don't think its a odd question at all- I have several back up tools that I use on my frequent production work. And as stated, if used intelligently they will pay for themselves.
I would probably error on the side of caution though, get one get familiar with it first then decide if you really want to invest in yourself with another one.
It appears that they will be more available here in the very near future, so availability ought not be the issue. Its just the ironing out of the wrinkles which the CW people have dedicated themselves to do.
I personally will use mine see how it goes and decide if I will be better suited to purchase a second or save and invest in a larger more commercial model. Best of luck with your choices.
Julie
"Today I am becoming who I once dreamed to be."