
actually, I have several; have worked as a large corporate event planner off & on for years (freelance).

Donate my services to many charites too. While there are business & corporate etiquette differences, being gracious applies to both guest & host.
Additionally, many of the grande dames differ in their perception as to "the rules". Morseso that blindly following the perhaps outdated rules (think an old Disney guidebook

), what is socially acceptable/the norm in the area/circles you frequent is what guests expect. IMO, it's an imposition NOT to provide where/email of the registry to the guests; last thing i want to do is spend precious time hunting that information down.
What is de regieur for a country club formal wedding for mostly family & intimate friends obviously is not the same as an outdoor afternoon cake & tea reception.
In Pittsburgh, you can still obtain a sit-down dinner & full cash bar for less than $100 pp; not including the venue/entertainment.
Did it ever occur to you that said couple don't always want everyone that is on the list (provided by parents, grandparents) at their wedding in the 1st place?

Whittling down that massive list is an exercise in diplomancy.
In our area, bridal showers are even more intimate. You do not invite everyone on the wedding list. So, to not provide a modest shower present because you're going to give a wedding present or vice-a-versa is quite odd to me. Perhaps, a regional or ethic custom?
Again, no one is forced to attend a wedding. If you don't want to go; decline. If you don't want to give an average gift (and most prudent people know what that would be

) don't. Either way, it's your personal choice; just don't be surprised if your child gets the same treatment when they marry.
as to the poster who offered me condolences for being a pack-mule for "my" presents....they were my
childrens gifts.

FYI, the items they didn't need were donated to charity...so i guess it all worked out...happily every after.