I just stumbled upon a site called Dog Vacay where dog owners can sign their dogs up to stay in people's homes while they are on vacation. Many of the "vacation spots" are homeowners with their own dogs, often trainers, vets, foster homes, etc. that will play with your dog and give him/her the attention they otherwise would have had at your own home. Some even let the dogs sleep in their beds with them if that's what the dogs are used to at home. They will even send text messages and pics of your dogs having fun on their vacation, while you are enjoying yours.
What a great idea! It's nice to know there are other options out there besides imposing on family/friends, or boarding the dogs at an expensive kennel.