This is my family...and we probably are in the minority of DVC owners having reduced trips a bit since buying. We still love Disney, but not at the same frequency and length of stay that we used to. And we just bought DVC a few years ago! We started going to WDW regularly a few years before we bought. I don't regret our purchase at all, but I'm really glad we did not buy enough points to to spend a week at WDW twice a year, which is what we did for a couple of years before buying, Sadly, my kids reached a point of no longer being excited about going to Disney for a week. The other issue we've faced is difficulty finding time for a week at WDW due to school and sports schedules along with wanting to other things besides WDW. WDW is a seven hour drive for us, and we go to Florida for reasons other than WDW, so working in a 3-5 night stay at WDW works well for us. If we lived further away and had no other reason to visit WDW, we'd probably go for 5-7 days every other year.
ETA: I should note, though, that even though we are doing less Disney these days, I am still thinking of adding points. Sounds crazy, I know! We only have 150 points and prefer 2BRs for our family of five, so even with shorter and less frequent trips, we could still uses another 50-100.
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