I had mentioned Olio Style invitations in my review of letterpress cherry blossom wedding invitations. Their pricing is not posted on the web site, but I did e-mail them for more info. This is what they said.

For 100 single-layer panel invitations, including reception cards, response cards and envelopes, and outer envelopes it will cost:

Flat Printing

• 1 Color: $550
• 2 Colors: $600

Thermography

• 1 Color: $840
• 2 Colors: $965

Letterpress

• 1 Color: $1325
• 2 Colors: $1675

A layered panel invitation will cost $100 more, for whatever printing style you choose.

Left: Cherry Blossom (layered 5×7 panel invitation)
Center: Blooming Branches (5×7 pocket folder with belly band)
Right: Kyoto (5×7 pocket folder with belly band, also available as a panel invitation)