Flea markets at Community clubs

[Khairul]

Hi all,
a newbie to the concept of flea markets.i am actively looking at selling at flea markets as a new revenue drive for my company.we are selling audio items where price range is about $15 to $500 dollars.

Question is,is there enough crowd at flea markets to garner at least $2000 in sales per day ? What is the average crowd number and what age group usually patronise flea markets.

thanks