"Google Marley & Me"

Seriously.

Yeah it was meant to be funny.
Read what you said again
"Dogs need to spend much more time outside than inside." If that's truly what you believe, and you think it applies to all retrievers, I think you are nuts.
What if someone works at home?
What if someone drops their dog off at an indoor daycare during the day?
Being "outside" isn't the magical cure-all you're making it out to be here, and being "inside" doesn't mean they will be stuck in a room by themselves all day.
Aaron, you can keep getting hung up on that if one sentence if you choose. But, applying absolutes like "all retrievers" and putting words in my mouth like "magical cure all" is not portraying what I was trying to say in a fair light. I think it makes a huge difference if you have the luxury of working from home. With our last pup I made my wife quit her job for the first six months, by that time they are house trained, mastered basic training and big enough to stay outside unattended. For the next six months I only let her work part time.
I think indoor daycare during the day is fine. I wouldn't suggest using a place like PetMart as a boarding facility tho. Being locked up in a kennel with a half hour of play time a day inside resembles to much like the jail reference people here have tried to attach to outdoors. Sure your dog will survive for a week while on vacation, but, not really ideal.
And I'm glad you thought the Marley and Me reference was funny,

, that's what I was shooting for. But, fwiw, it's based on a true story.