I ask because although we haven't chosen a venue yet, there are a couple we're looking at that rent the entire venue for the weekend... and say that it's okay to share the venue for two weddings.
Both have packages that seem reasonable and both are lovely ceremony/reception combos. Plus there's the bonus of splitting the cost of tents and chairs in Merry Hill, so long as whoever marries first cleans up. A Saturday wedding and a Sunday wedding would work, especially if the Sunday crew took a Saturday morning/brunch rehearsal and the Saturday afternoon/evening wedding did a Friday night rehearsal.
Even if my fiance and I end up going with a different venue (we're eyeing a couple beach and mountain locations, too), it's an good idea for someone...