To the OP, where in Hawaii are you located? We have kicked this idea around in our circle as it is a dream of all of ours to own a smoke shop and lounge. Biggest barriers that we can see: smoking laws, you can get away with a lounge but the restrictions are tight and require some very expensive air filtration systems; Hawaii tobacco tax, its throug the roof and makes pricing cigars reasonably difficult and could cut into profit margin; and lastly, locations that will cater to the desired clientelle are very expensive. If you have the capital to get it going, I think it could do well. Our guess is that you would want at least a million going in, this seems to match up with the previously posted article. Also, if it is a lounge, the liquor liscence is a pretty penny as well. Good luck, hope it works out and I can come support your shop