I'm with Paul. You start demanding money and ppl will just think of you as some rude snob. Just as was said before, they are GIFTS. Who cares what ppl get you or how many of the same item you got. Be thankful they got you anything at all.
Brb, invite ppl to my wedding and tell them to give me cash. I dunno how others feel but that's shitty.
PS, been married for 2 yrs. didn't ask for anything at wedding. Got combo of gifts and money.