We use to sell it as a third option for a few years. We gave a price for a basic penetrative, a premium ten year penetrative and for colorseal.
Many went for the color seal option based on my sales pitch of "now you wont be cleaning concrete but rather a plastic coating" or something to that effect. Any customer who had spent a weekend with bleach and a tooth brush, and who had $3 a ft to spend on grout, went for it.
and of course after a year or three we started seeing enough random spot failures to make us lose faith in the performance across the board. We now very selectively use CS as a way to hide stains that acid and scraping wont remove, fix bad repair jobs by handy men who messed up a color match and so on..
Mark's applicators are fantastic but I have real issue with how he sells the CS service to his personal clients.
and we dont sell premium 10 year penetratives anymore either............