Interesting article.
The health of farmer's markets is a topic near and dear to my heart. On average, I go to two every weekend. I have been going to the Evanston Farmer's market for over a decade - even though it is not in my neighborhood. It is still going strong.
I used to really enjoy my local neighborhood market as well (Logan Square). In the last year, I have noticed a few key farm departures. It seems to me that new entrants are more likely to be prepared food vendors rather than farmers and the mix of offerings is slightly shifting. That said, it still has a good number of produce vendors and I'd consider it above-average for the area.
When I think of farmers markets -and particularly those that l those that I love - it is all about fresh fruits and vegetables. Ideally, there is both depth and variety. I like to walk around and see whose looks look fullest or whose blueberries are the firmest. I realize that some people appreciate prepared food vendors, but that's not really a farm-related market to me. I shop for ingredients and cook at home. If including them helps make a market viable and fills a public need, all for the better. But I can certainly empathize with a farmer who feels the need to attend multiple markets (often on the same day) to meet sales goals.
This weekend, I went to Green City Market (Lincoln Park) for the first time in years. The article says it gets 10,000 visitors on a weekly basis, which I am sure is the highest total in the region. The foot traffic was evident almost immediately because the number of vendors and the quality and variety of the produce basically blew other markets out of the water. I remembered it was a good market but the difference of how much better it was surprised me. Vendors I see elsewhere had more items and more of them.
I imagine that Logan is still a healthy market. I have not spent much time at the smaller neighborhood markets because A) they are not my neighborhood and B) they rarely seem to offer anything I can't get at one of the markets listed above.
Convenience is nice and if all things were equal, I'd love to be living within walking distance of the best market around. However, I value selection more than anything and I am willing to travel to the markets I consider best. I will probably try to get over the Green City more often since it is really first rate. That being said, there is no reason in my mind why GCM should be so much bigger and better than anywhere else in the city other than by its reputation. It's not like it is in the most population dense area of the city or that its neighborhood is particularly accessible to those from all over (it isn't). But I think when the article talks about new markets cannibalizing business of others it is Green City Market-excepted. And I'm trying to figure out why that might be.
I could see an argument for having fewer markets that are better attended, but it would be hard to convince any neighborhood to give one up if the residents have grown use to it.