この質問のとき苦労したけど、
http://bbs.arukikata.co.jp/bbs/tree.php/id/773894/-/parent_contribution_id/428359/
ナパのワイナリーめぐりは本当に高くなっています。
きょうのLA Times に それを安く上げる方法がいろいろでています。
http://www.latimes.com/travel/california/la-tr-d-napa-on-a-budget-20141102-story.html#page=1
Here are five ways to save money on a visit to Napa Valley's wine country:
1. Visit during the off-season, November to April, when lines are significantly shorter and prices lower.
2. Stop at the Napa Valley Visitor Center (600 Main St., Napa; (707) 251-5895, www.visitnapavalley.com) as soon as you arrive and pick up coupons for deals on wine tasting and other activities. They vary, but some offer significant savings.
3. Saturdays are the worst days to visit — and to drive on crowded wine country roads. Additionally, most hotels require a two-night stay on weekends. You'll find lower prices on midweek visits.
4. Take along a designated driver and don't try to visit too many wineries in a day; experts recommend four or five as the limit.
5. Many wine country fans say to sightsee in Napa but eat and sleep in neighboring Sonoma County, where prices are lower.
わたしらはいつもこの#5です。ソノマもすばらしいですけど ぽち最寄りの カリフォルニア大 UC Davis の 出身なのでだいたい Davisに泊まるから。 昔とちがってナパも食通らのツアーが多くなって、観光客でごった返しているのだろうと思います。