I love both trader Sam's. I don't like beer or wine, but I feel like most of trader Sam's mixed drinks are just as over priced as the rest of Disney's.
Someone was asking about the 'show'. It's not really a show per se. Ordering certain drinks can lead to effects. When the Krakatoa is ordered, the lights flash and the animated windows in the bar come alive, which show a tropical theme and a volcano erupting. The bartenders will play up the scenario and yell things like 'run for the hills!'. It can be a really fun time if the whole room gets into it.
Another effect is the pearl drink. The bartender makes a big show of taking the pearl from a giant clam. Very rarely you could get a black pearl instead of the usual white.
There are a few other effects too. I don't think everyone would or should enjoy trader Sam's, it just depends on what you like. For instance, I know a lot of people on disboards love the rose and crown bar, but I think it's boring.
But finishing up with my original point, as someone who drinks a lot of frou from mixed drinks at disney, the prices at trader Sam's aren't any worse or better than other places on disney property.