DH and I met 2 1/2 years ago and merged our two families...his 2 kids and my 2 kids. Our first trip as a new family was in August 2009 and we got 2 rooms at the Pop. Our oldest always takes a friend also, so that's 7 people. Then DH and I went back to WDW in September 2009 for our honeymoon and decided to do the DVC tour (just wanted the free gift cards they were giving out

) After really thinking about it, we decided DVC was definitely for us! Traveling with 7 of us, the 2-bedroom villas make MUCH more sense! That August trip we got
free dining, but we have never been able to take advantage of free dining since then for the times we can actually go now. Oldest is a junior in HS, so we won't pull out of school. That limits us to pretty much spring break and summer. Our first DVC trip was March 2010 (spring break) in a 2-bedroom savanna view at Kidani.

It was SO nice having a separate bedroom for US, separate bedroom for the teenagers and 3 bathrooms (granted, not all DVC 2-bedrooms have 3 bathrooms and we're actually staying at BWV in June, which will only be 2 bathrooms, but that's okay). We totally take advantage of the kitchen also and save on meals that way. This trip we plan on going to Costco to get family sized ready-made meals (frozen lasagna, frozen pizzas, Costco's ready-made refrigerated meals, etc.) and doing mostly those for our in-room meals. We will do probably one meal "out" a day and the other 2 in the villa each day.
when we stayed at the 2 rooms in Pop, there was really no way to get away from each other while in the rooms. At the deluxe resorts, we have the separate bedrooms and we also have the balconies that we can sit out on (which we fully take advantage of also! sitting out on the balcony with a glass of wine at the end of a park day is heaven to me!)
If we only had 2 kids, we would probably not do DVC. Maybe, maybe not. But for our larger family, we definitely prefer it this way and it works out really well for us. We usually go at least once a year also.