So, if you target bad spelling keywords with a different page...
they will probably respond to different stimulous. I guess the key is the point already made, why are people miss spelling?
Lazy/too fast/stupid/never learnt/text speak.
I am sure there are some profiles, which will fit the phrases searched for but it might get more complex than it is worth bothering with, depending on the product.
Not sure if it is entirely relevant, but I removed a "cheaper" item for sale a couple of years back, because the type of customer it attracted kept sending them back. I never really got to the bottom of why, it was simpler to just remove it, but there was nothing wrong with the product, it was good at the price.