My dd's best friend(10) leaves the day after school gets out and is gone for 8 weeks. She loves it. My dd on the other hand wouldn't leave me for 1 week never mind 8. If I could afford it and my kids wanted to, I think I would give them the opportunity to go for 2 weeks.
My daughter may be your dd's best friend, lol. My kids (now 10 and 16 - oldest is 21 - too old for camp) go for eight weeks each summer. The first summer she went (she's our youngest - so we were experienced camp parents) when she was 7, turning 8, she stayed for four weeks. She loved it so much, she begged for the full eight weeks the next summer. Her brothers started at 8 weeks when they were 10 years old.
They love it. That's all they talk about all year. They have their home friends and their camp friends. This particular camp is actually two camps: a boy camp and a girl camp, run by the same foundation.
There are no electronics, no computers, no tvs, etc. It's "all natural": hiking, canoeing, archery, sports, arts and crafts, tetherball, etc. Each month, every child in the camp is expected to take a trip, either canoeing or hiking, usually lasting 3-7 days, depending on their skill level. They learn skills each year to build up to more challenging trips, such as plotting the route, packing the food, determining how much they will need, packing their gear, etc. This is my middle son's (he's 16) "senior year" where they have their wilderness trip for three weeks and then he ages out.
They don't allow staffmen who are not high school graduates, so for the next two summers after this one, he plans to go to DC and participate in Presidential Classroom and travel to Europe.
I am sure my children will spend at least a portion of every summer of their adult lives at their beloved camps, as so many of the alumnae do. And, I am quite sure my grandchildren will end up attending these camps as well - it's had such a positive impact on my children's lives and on our family. Our camp friends are our other family.
The opportunity to go on adventures, be independent, learn skills they never knew they had, live life the "old-fashioned" way and realize they can make it without facebook or cellphones, make friends from around the world who become lifelong friends, etc. is something we wouldn't trade for the world. We are so thankful and sacrifice a lot so we can give them these opportunities.
Summers are for memory making in our family too...just of a different sort.
For the record - I know for some people it's difficult to understand that some families do things differently than they do - but to say camp is "child abandonment" is a bit of a stretch. To criticize something you know nothing about or have any experience with is really simple-minded.