Choceyes - I went to a wedding two weeks ago which cost me more than £500 to attend, in flights and hotels alone.
I put £30 towards the honeymoon fund and tbh it rankled a bit that I was being asked for cash at all. I know this doesn't sound like a lot for me to have donated, and they did spend double that on my wedding present, so I was made to feel quite mean. However, I simply couldn't afford any more. The trip to their wedding cost more than our whole honeymoon.
Again, this couple were having a "mini moon" in Italy for a week, before a "proper" holiday in the Caribbean next year - paid for by their guests.
When I got married I didn't have a gift list and certainly wouldn't have asked for cash. As a result, our honeymoon was a week's camping in the UK. We had a lovely time. And I'd much rather have done that than slip a cheeky note in with the invitations - or, worse, a cringeworthy poem - "suggesting" that cash for a honeymoon would be what we'd like. As much as people try and convince themselves otherwise, it's rude and grabby.
If you deem something important enough to be included in the invitations, it comes across as a request, not a suggestion. Guests are more than capable of asking couples what they'd like as presents, and couples shouldn't begrudge the "hassle" of explaining to 50-odd different people what they'd like.
As for the argument that if you don't give gift suggestions you'll end up with 28 toasters - what a load of bollocks. People have managed to buy presents for birthdays for years without gift lists - what, are they rendered entirely stupid and thoughtless when it comes to weddings?
I don't know why choosing to get married makes people think they have the right to make their friends and family pay for the holiday of a lifetime that those contributing could - more often than not - never afford themselves.