Well, here's the issue - yes, the bride and groom lived there. However, they only lived there for a couple of years. Both of their families and friends were from 2 other (far away) states. The poor bride and groom got grief from both of their families, but it was probably easier than choosing one of the other states. 90% of the wedding guests were from out of town.
The bride would've been fine if DH didn't attend - his step-mom, not so much. I think she assumed we would all go! Blended families can be tricky, and we didn't want to cause any hurt to anyone (especially DH's dad).
I have to say, there are no issues of resentment in any of our families - everyone gets along with everyone - because most will go out of their way to keep the peace. Money is important, but family is more important to us. I was glad we could compromise, and just send DH, and make everyone happy.