Like many other posters I am concious of my point use (have 250)--but only to a certain degree. I never stay on weekends, always arrive Sunday and check out Friday. I don't enjoy WDW on weekends anyway, (esp the parks) too crowded for me.
However when I go with my 2 kids I will stay in a 2BR so my kids and I can each have our own sleeping space. I snore, so no one wants to sleep with me. One daughter likes to sleep with the TV on, the other doesn't, so they don't sleep well if they sleep together. One BR's are enough space for us during the day, but if I want everyone to get a good night's sleep (and be in a good mood during the day) a 2BR is in order.
If I go alone or with a friend a one BR is fine. I have not stayed in a studio, since one of the main reasons I became a
DVC member was for larger accommodations and for all the amenities the 1 and 2 BR's have.
I'd love to only go during the lowest point use times, but I like to go every six months (at the minimum), and to avoid big crowds that usually means splitting my time between low season (Oct or Sept) to a season that uses more points (end of April or anytime except Memorial day in May). It works out perfectly if I go alone or with a friend to a 1 BR std at BWV in the spring Sun-Fri (120 pts), and then go again in the fall with my daughters Sun-Fri to a 2BR std at BWV (interestingly enough also 120 pts). I end up with 10 points left over.
(But if you look at my counter it didn't work out that way this year because I am taking kids to both trips. I had to rent 30 pts, but I don't plan to do that again).

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