Non-bridesmaids at Bachelorette?

I just recently did my sisters bachelorette party. I rented a house, bought food and booze for the house and split the cost among all attendees. I personally paid for the decorations, another girl in the bridal party took care of t shirts and hangover bags. That's pretty much the way I've always seen it done...

So split the stuff that we will all be using (lodging, good, etc.) amongst all, but keep special activities to only BP members?

For example, let's say that while we're out we decide to go to an amusement park (Orlando, FL is a possibility) do I split her ticket amongst all or just BP members?

I've never been to a bachelorette party with just bridal party. And I've been to A LOT! Usually it's a bunch of friends coming to the wedding. We all split it. Vegas, Tahoe, San Francisco.. It doesn't matter where. Just tell the girls what it will cost and whoever can come will come.

In my experiences...bridal party splits bride's expenses/accessories for the night. if other attendees want to get a shot or drink or whatever for her, but the brunt of bride's cost is divided by BMs

destination is a whole different story since at that point you're asking ALL attendees to invest more time and money. bride covers her own airfare and lodging. BM's cover any accessories and can opt to cover whatever of brides activities/meals/drinks that they feel comfortable with. attendees can cover what they feel like but not obligated to cover anything beyond their own travel and expenses.

I've been to a couple of them and not part of the bridal party. I was not asked to pay for anything other than my own food and drinks once we went out of the house.

I've been to bachelorette parties where I was not in the bridal party. We all split the costs evenly.

I think it's fairly common to invite guests beyond the bridal party. As far as I'm concerned, if I were not in the bridal party but attending someone's bachelorette, I would be totally okay with buying my own dinner/drinks/rooms/tickets (depending on what it is and how expensive). I think the bridal party should be covering decorations and any special games. Also, the bridal party would typically split for the bride's portion - but I paid for one meal of mine on my bachelorette, but they covered my meals during the "big" event portion.

A lot of this to me is situational of local or a trip. If it's a trip, I think fees are broken up a little differently. Also, for a bachelorette I am attending next weekend (I am in the party), the MOH consulted everyone on the cost for one special activity and we will cover our own meals and drinks. The MOH is covering a lot herself for lodging. It's very generous of her. I think it is nice if you as the planner expect other people to pay, you should consult them on their budget before hand.

Just some thoughts I hope it helps!

Thanks everyone!! Definitely insightful in helping me decide how to go about this.