Thanks for the write-up Sarah,

I think a lifetime plan or so-called "unlimited" plans are completely unsustainable for hosting companies ( like the example you linked) as their customers will continue to use resources long after they've been paid the initial amount.

With our lifetime plan at $199, that's essentially 4 years of access and support at our regular price - we find that some users will initially need some support but after that they are fine on their own. The only thing might be bug reports which we welcome anyway to improve our theme offerings.