Definitely a lot of variables in this one & yes different cultures give different amounts so here's ours:
$2500 - $3000
No cultural influences
We had said please give us a gift if you find something you'd like to give otherwise we will be having a wishing well
Got gifts from some families (esp the ones that can't afford a lot) - about 5-8
2/3 of our guests travelled & paid for accomm to be at our wedding
Parents: DH's parents bought us a Dyson (YAY) & My parents gave us money to buy a new Tv cabinet & coffee table (which I haven't
included in my amount)
My brother: Gave us $1000
towards our honeymoon, which we not expecting & I also haven't
included in the above amount.
Hope that helps.