Wedding gifts????

What do you give "monetarily" for a wedding gift if you are invited but not going to the wedding? We were invited to my husband'f friends, son's wedding (they live 3 hours away and we already have something scheduled on that day) . We want to acknowledge the occasion with a gift ... but do you give as much as if you were attending the wedding? They did not include a registry list so not sure of that route!

    This is good advice ladies... we were just talking about this today again... and were wondering if we have to give a gift at all... I think we should! What do you think?
      I personally do not know them well at all... my hubby is/was just good friends with the dad. i guess I will leave it up to the hubby to gift or not gift! LOL!
      About Magen
      Birth: December 31
      On since: Sep 14, 2013