Hello,
In regards to the price difference between the two, you get more included with your dinner at Kobe. They used to include the salad with dinner at Teppenyaki, now it costs an additional $3 and change extra. So, that makes the chicken at Kobe $16, while the same dish with salad at Teppanyaki is now $21. For filet mignon, which is what we usually get, it's 30$ w/o salad at Teppanyaki, $33 with salad, and $21 at Kobe with salad. If you do a combo at Teppenyaki, the prices go up even more. I'm not sure if Teppenyaki also made the soup a separate item, I can't recall for sure. Until late 2004, early 2005, Teppenyaki was a good deal, but they jacked up the prices, and removed some items from what was included in the dinner. They also used to sell carafes of house wine that were very reasonable for Epcot, at about $20 for a full carafe. They no longer sell those, and you pay upwards of $30 for a bottle of their cheapest wines. They also don't honor DDE, which is a big factor for us. They are one of the few restaurants in World Showcase that don't honor that discount.
Still, Teppenyaki is a fun place, and you can't beat the location. But our last dinner at Kobe (Dec 2005) was in the $75 range with a bottle of wine, for two. Our last dinner at Teppenyaki ( May 2005) was over $100 for two, with one glass of wine. Plus, you can get discount coupons for Kobe from some of the tourist mags, although we didn't the last trip.
Hope that helps.
Take care,
Bill