Poke-do in Sendai: 5/5 Diamond. The cheapest prices I found in all of Japan.
Excellent variety of sealed, singles, and accessories. Nobody talks about this shop online. 8th floor near Sendai station, completely off the tourist radar.
Cash Only, so bring your yen. If you can add Sendai to your itinerary, Poke-do alone justifies the bullet train ticket.

