In this economy too, they are becoming more and more prevalent. In fact I just heard of a local one happening on weekends at the Wayne County Fairgrounds in Belleville - I may just have to stop by and check it out!!!
Multi Vendor Flea market
Saturdays & Sundays through September
8am to 4pm
(Quirk Rd. off the North I-94 service drive
Between Belleville and Rawsonville Roads)