We go to WDW twice a year, usually. August and December. Buying DVC won't change the frequency of those trips, but it seriously upgrades our accommodations!!
We aim for 4-6 DL trips per year. As of right now, we are light years above normal! We have gone every month, and my travel buddies were SCREAMING yesterday when I suggested we skip April! We were in line at Monsters, Inc yesterday, and everybody had their calendars out to look for the next trip dates (we always do this). When I suggested bypassing April and looking at Mother's Day, you'd think I pulled out a gun!