No, I don't think it's tacky at all. You might not be the only one feeling this way but maybe no one else wants to admit it. Be the first, someone might follow suit.
Lots of people are feeling the pinch this year. If someone in our family didn't buy I would never feel slighted. Probably would put 2 and 2 together.

Christmas for me isn't about gifts, it's about our whole family being together and celebrating.