Kind of agree with carlsog, 2.5K for a wedding shot on a digital SLR is a peetake. I don't care how long you spend on photoshop afterwards. Its not exactly rocket science and I run a digital print & design company. I guess you have to be confident to command those prices.
Its not even like you have to shoot polaroid any more, its all on a high res screen right in front of you. If its poor you delete and repeat. Not even any lab processing or film cost these days.
Professional Advertising guys get paid less and are truly skilled. I did my time working for them. My advise shop around, don't think that by paying more you are guaranteeing a better outcome.
DO: remember to have the best day of your lives!
PS. The ad guys I worked for bought the client lunch!