The short notice and possibly the cost are factors for a lot of us. Anyone of working age has most of their yearly calendar planned out with holidays, family events, hunting trips, etc.
If you've already used your paid vacation days, it's hard to justify taking more vacation time, both to an employer and a spouse.
I've been a member here less than a year, but I've learned from this awful group of enablers to have a secret stash of funds and vacation days, specifically to jump on the good deals that pop up here on AH.
In the long term, I hope this doesn't effect the game population, the PH's, or the people of Namibia to severely, and that the recovery from the drought comes quickly.