I wish you the best of luck, but considering that you will be up against the bridal industrial complex in attempting to reach inexpert customers who are by nature transients in the field, I would suggest rethinking the price. With the average cost of a wedding in the north-of-$25k region, you might find that the difference between $25 and $100 matters very little to the customer but very much to your ability to afford advertising for it.
Also, talk to Andy Brice from Perfect Table Plan and pump him for information on who the ultimate customers of his software are.
P.S. The fact that a particular woman is marrying a particular man on a particular day is, in itself, worth more than $25. It can also be sold to multiple people. Just throwing that out there -- lead generation often isn't held in particularly high esteem, but it is big money.