I dont really think you should rule any sector of the market out just because of other pepoles bad expierences,
Just try to learn from the mistakes that have happened to them IE: pubs dont pay on time make sure that you only except cash on the day.
They are,rnt loyal :dont make them a priority.
I think it,s always better to service awide section of the market .
remmeber dont put all your eggs in one basket.
Neil