when in HI I seem to enjoy poke so much more than sushi.

I agree with the OP, I've had many supermarket sushis and almost all were blah. There are two exceptions that I know of which are local Japanese markets near my house in NW Chicago, but even these do not seem as fresh tasting as getting sushi in a restaurant.

A high end market in Chicago Fox & Obel makes sushi on premise and it is blah. Doesn't seem easy to store AND keep the quality/texture.