I prefer to wait for the final versions, myself - sorry, Larry. Never bought an e-ARC yet, and don't imagine I'll be doing so at any point in the future. If it were a hardcopy, especially a signed one? That, I might be willing to buy (almost got a copy of Weber's last Safehold book that way, but it turned out that the buyer who had planned to pass on her copy to me pretty cheap was kind of getting screwed by her seller, so she ended up never getting it in the first place. No money changed hands, and it wasn't her fault).
But I AM looking forward to getting a finished copy of this in August, and I'm reading Hard Magic right now - liking it quite a lot, actually. I really like the concept.