Big Catch was such a great find for us. We have tried sushi all over Calgary and it is generally okay and often overpriced. Big Catch in my opinion is leading the way in the Calgary sushi scene with very high quality sushi prepared with incredible detail at very reasonable prices. They also seem to always have toro in stock which makes me very happy. I can't tell you how many places in Calgary are always sold out of tuna belly!
I generally like having a beer with sushi so we almost exclusively do take away (no license at the Farmer's Market... yet!). We pretty much place an order every weekend or so. I hope they decide to open up a licensed place some day. They are masters at what they do so they will be successful no matter where they end up.
When you serve amazing food, people will always find you!