Excellent concept;

Taking photos of homes to personalize each Card, which grabs the attention of each recipient.

Then charging $1.50 per Card = $1500 for 1,000 Cards mailed.

Charging $1500 per 1,000 postcards from 1 participant and netting "890" is a "fair" number for your effort.

However, what if there was a way to get 25 participants to each pay $1500 for the same mailing? ($37,500 Gross less $610 = $36,890 for the same effort)

....or 20 participants who pay $1500 each? ($30,000 less $610 = $29,390)

...or 10 extra participants on the same Card? ($15,000 less $610)

...or just an extra 2 participants @ $1500 ea = an extra $3,000 + $890 = $3,890 per mailing!

It does not have to be an exclusive mailing for one participant! It could be an exclusive mailing for each "category" or participant!