"money should not be so much an issue and you would tend to be more generous." - all well and good if you have the money but I have to say that most weddings I've attended have cost me an arm and a leg just to go, never mind the present.
I made a decision last year after taking my second pay cut from work that I was not going to give any couple whose wedding I was invited to more than 250 euro no matter who they are. Majority of cases it will be 200 euro.
I'm attending a wedding of a good friend in October, its looking like my partner may not be able to attend as it is mid week and he is self employed and can't take the days off. So I'm def leaning more towards 200 euro, especially if I'm going alone.