I think it'd be better to just have the one small set with a bride & groom (4298) but replace them with the bride's parents (in 4297), the groom's best man & ushers (in 4307, tying cans on the car), bridesmaids (in 4296) or similar figures for the bigger sets.
Your idea would definitely work better for those collectors who plan to buy all of the sets.
It does seem a little odd to have so many different wedding couples, but I guess it's so that kids can hold more than one wedding in their church. They would get bored marrying the same couple over and over.
I also thought the bride in the car set looked slightly more casual, almost as though she had changed into her post-wedding reception outfit, ready for the honeymoon. It's nice that they have created a few different styles of wedding attire, in any case. The floral headpiece is so pretty!
I really hope that Playmobil will expand on this theme rather than discontinue it after a short time.
I can see the potential for a beautiful christening set - mum, dad, baby, priest and a font.
And what about a funeral set... hearse, coffin, mourners, etc?
Yeah.. dream on, Sylvia.