Decor HALP!

Ladies, I need your assisstance! I booked a wedding package through my ceremony/reception site based on a preliminary guest list of 60 people. The package was for 50, so the extra 10 were not going to add up to that much more. Sadly, our preliminary guest was horribly wrong and our invite list finalized at 115. Because of that, everything based on guest number has doubled in cost (cake, centerpieces, food, etc.)

The way the package works is that there is a set amount of money alotted to every vendor. The florist is where I'm having trouble. We were just about $100 over our allotment with the origional guest count, but now with double the centerpieces we're $800 over. I'm thinking about cutting one my favorite decor items, smilax branches with white Christmas lights strung through the rafters of my reception site, to shave $650 off the cost. I may hang colored paper laterns instead, but I wouldn't have the florist do this as the laterns are insanely expensive through her.

What do you think? Am I really going to care about the lighting after all is said and done? I LOVE my ceremony and reception site and all of my vendors, and I am so excited to be marrying my high school sweetheart. Should I just forgot that one thing and move on? I'm trying very hard not to put money and "things" over the point of the whole wedding! Or should I stick to what I love and deal with the expense?

Thanks so much in advance for your advice!

P.S. Nope, I can't cut the guest list. My fiancee and I have talked about the increased cost with the doubled list, and our parents have decided that redoing the budget and spending more was worth it to them to be able to invite everyone we truly want to. I'm just trying to decide if this part of the cost is worth increasing the budget over.

(x-posted to the wedding bee boards)