There was a thread on another board the other day about brides who still remembered, decades later, people who didn't get them wedding presents.
DH and I had a kind of similar conversation this morning.
Which is more offensive to you: Someone who doesn't get you a wedding present, or someone who doesn't write you a thank-you note?
For me, it's the thank-you note. I was genuinely surprised, pleased, and touched that our guests got us wedding presents, because it certainly wasn't expected. I wrote all of our TYs (38 in the three days after the wedding alone; another 25 before the wedding) and got them in the mail Thursday.
I can still remember every single bride who didn't write me a thank-you note, and in every case, it negatively impacted our friendship. No TY for the wedding? No baby shower gift for you. I don't expect a present from you, but I damn sure expect a thank-you in a reasonable time (less than two months) if I've gone to the trouble to give you a gift.
The one that still rankles me the most is the girl for whom I crocheted a full-sized bed blanket for as a wedding present. No TY from her, ever. I'm still bitter.
I'm gonna go with 'not my circus, not my monkeys.'