Letterpress Wedding Invitations

My fiancé and I fell in love with letterpress invitations, but are slightly worried about the cost. We found a vendor that is about half the price than the majority of letterpress vendors and now seams more feasible. Do you think it would look bad if we decided to do just the invitations themselves in letterpress and the rest of the suite done in normal printing or should we keep the entire suite in letterpress? is would be about 20 percent cheaper to not do letterpress for the entire suite. We could also do a couple of pieces in letterpress and a couple of pieces in normal printing. We would have the invite, the RSVP, the reception card, and the accommodation and details card.