You'd have to ask the Sosuans on DR1 about that.
I agree, it would have to be aimed at the expat market. Cards are definitely not a big thing with Dominicans. The only people I know here who display Christmas cards are my expat friends, and I am the only member of the family who gives birthday cards with birthday presents. Valentine's day seems to be one of the few occasions when I see Dominicans buying greeting cards, but as I said, the Hallmark shop near me went out of business, so it is definitely a minority interest.
Chiri