There is a huge demand that is relatively difficult to fill, especially in scarborough. I am in Scarborough and order my feeders from Orillia/ Barrie. If your prices are low enough I can gaurentee that you can maintain a constant customer base. I order from Near North Rodents, frankly because he is the cheapest company that is reliable. Customer communication is key. Most rodent suppliers around here couldn't care less about keeping their customers and honestly I would rather pay 10-15% more to deal with someone with a teaspoon of consideration. If you were to offer a product at a reasonable price, and maintained a professional and respectful relationship with your clients - you could do very well. Goodluck, and if you decide to start selling in Scarborough let me know.