Ah, I see, I thought you meant "physical shop owners" when you mentioned "retail" :D
And well, the question is when. I think when the non-crypto people buy in it shows you the bubble is forming. Usually the correction happens later, and in a much more severe manner.
Except I guess you're right, some people who have been in for a while used this opportunity to cash out, knowing many of the non-crypto afficianados might also run out as the coins crash, and they'll be able to just buy back in and make a bank?
Hm.