65-70 will put me over 200 for my display this year. Last year I carved 100 and had 150 total including about 15 real ones (which had to be thrown out).
After I reach 200, I think I'm going to rotate out about 40-50 per year (perhaps donate the ones I don't want to other haunters in the area). I'm running into storage issues at home. Because of the storage issues, I have focused on carving smaller pumpkins (9" and 6" foamies with a few larger ones for more detailed patterns).
So far, my wife has been very understanding of me taking over the laundry room for my in-progress work. She's not completely nuts about Halloween like I am, but she was impressed by last year's display. She enjoys socializing with the people that visit and watching our kids go crazy.
In the Portland, OR area? Please check out my display!