FI and I are going the DIY route to save money. We're currently at $2.15 per invitation - this includes paper (I picked high end card stock), printing, welcome reception insert card and travel arrangements insert card. It does not include envelopes or postage. We are doing RSVPs on our website to save money and picked a standard size envelope so postage shouldn't be more than one stamp. They're not passport invitations, which I know can get pricey. Is $2.15 a lot? I feel like for DIY I should be at $1.50 or so. Maybe I'm crazy.
I know people who have spent upwards of $20 per invitation which I personally cannot justify (no offense to those of you who have spent that much...I'm sure your invites are gorgeous!)