The last few have corresponded to basically within the hour or two of the release of a competing model that is getting good reviews. Twice I've gone "well, I'm over my weekly limit for the next two days, may as well check this out" and almost just as I've finished that thought, a refresh landed and I went to blitz a week of usage in 48 hours instead because once it's gone, it's gone.

Hurray market competition and what capitalism was meant to be. Go above in providing a service or the customer leaves.