THespos: The only detail that I might be even remotely interested in is whether or not you’re having an open bar, so I’ll know whether or not to bring money.
By the way, Miss Manners and all of that ilk are absolutely unswerving on the verdict that it is TACKY TACKY TACKY TACKY (well actually, they say “not done” or “incorrect” or “just plain rude”) to have a cash bar or any other kind of pay-your-own-way deal at your wedding reception (or any other party, for that matter). No, you don’t have to bankrupt yourself to throw a party: if you can’t afford a sit-down catered meal with full open bar, it is perfectly proper to have only a buffet with soft drinks and wine (or only wedding cake and punch, for that matter, as long as you’re not scheduling the event to extend for an hour or more on either side of a standard meal time so that your guests are forced to choose between bailing out early or starving to death).
But dammit, when you INVITE people to be GUESTS at your wedding, you treat them like guests, that is, you assume the host’s responsibility of feeding and entertaining them without asking them to contribute to the cost of the enterprise. (In return, they have to assume the guest’s responsibility of pretending that they were adequately, nay delightfully, fed and entertained by what you were able to give them. In other words, if you can’t make it through a wedding reception without a few stiff drinks (and I don’t know that I blame you), the solution is a discreetly-used pocket flask, not complaining that the hosts should have provided more booze or at least a cash bar.)
Did I mention that secretly noting all the rude, tacky, inconvenient, and/or in-poor-taste blunders in the wedding plans is my own favorite method for enduring the obsessive blathering of Bridezillas? 
(And I’ve known one or two Groomzillas too, guys.) Interesting fact: without exception, the bridal couples I’ve known who were least obsessive and over-communicative about all the details were the ones who put on the most truly gracious, hospitable, thoughtful and enjoyable parties. When you’re thinking about your wedding as a star extravaganza with you perpetually in the spotlight, then you’re relegating your guests to the role of mere audience (or yes, supporting cast members), and it always shows. “I love planning parties,” on the other hand, is IMHO exactly the right attitude, because it means you’re focusing on how to show your guests a good time rather than on how to show off your wonderful bridal self.
