Personally, being the frugal sort, I'll wait until it is on special. By which time I'll have upgraded my headset to one I can wear for more than 30 mins without it becoming an irritation.
I do wonder if the demographic is bang on the money, with a large number of headsets in the hands of people in their late 30s and 40s who remember the original Half-Life. I had originally thought Valve would first reissue the Half-Life and Portal games for VR, or even reboot Half-Life.