The self-guided tour was interesting and the wind ...

The self-guided tour was interesting and the wind tasting delicious. The visit was worth it. However, the wines in the shop are overpriced. I thought it would be cheaper to buy it there since this is their official shop where they store their wines. Nope. It's cheaper to buy them at the tourist shops on any of the major streets in Gaia or Porto. Do the tour, but skip their souvenir shop. You can find exact same ones at cheaper price out there