Shoe Carnival has good running shoes for under $50. I got a pair of Asics that are really comfortable for around $30 and they have lasted me a couple years now.
You could find cheap but supportive running shoes online at ebay.com. Ebay will offer many running shoes that are quality shoes and will be able to help you out.
A good place to look to find cheap Mizuno running shoes is at the following website: http://www.trivillage.com/Mizuno-running-shoes-clearance-men.html
The best place to find relatively cheap running shoes would be an outlet mall. You would be able to try many different shoes from different manufacturers.
You could find real cheap running tennis shoes at amazon.com. Amazon is a great website that will offer cheap products to customers. Also you will be able to compare prices.
To find barefoot running shoes, you should go to barefootrunningshoes.org/, www.rei.com/Barefoot-Shoes, www.merrell.com/Barefoot, and wwww.amazon.com.
There is a cheap pair of New Balance running shoes that is currently on sale for $19.99. You can also find cheap New Balance running shoes while they have blowout sales, which happens about once every six months.
Department store running shoes are usually around 20 dollars. You may also find the brand Avia in stores like Wal-Mart, Target, or Kohl's. These will have cheap running shoes.
Go to a local Pay-Less shoe store and they will have tons of cheap running shoes. They are a little low quality but they are cheap. Go ask them when you want help on it.
There are many places that sell cheap black running shoes. Most shoe websites have an "arrange by price" option, which can be used to find a cheap shoe. Next just look for a shoe in black and now you'll be running in style!
The cheapest running shoes minimalist can most definitely be found online. The best online retailer that is the cheapest when looking for cheap running shoes would be Airwalks.
You can find good cheap Nike running shoes for women at Dunhams, Wear It Again Sports, or St Vincents, if you're lucky. Otherwise, go with a cheaper brand.
Good running shoes are hard to find cheap, but after searching I found one site that you might be interested in. Try this out http://www.holabirdsports.com/m/Running/Running-Shoes.htm