Maybe you two feel that way, but most people would be a little upset if they spent $20 on somebody and received a $5 gift in return. If a person has several pets I don't even see how it is possible to buy gifts that all of the pets can share with $5. This has never been a problem before, and we've done many swaps.

If you feel like a $5 gift is enough for you then you can state that in your questionnaire.