As a running retailer whose reputation is on the line with every pair we sell I can't afford to put sub-par or mediocre product on a customers foot. With all the quality product available I don't need another SKU unless it has something to offer a customer and I can confidently put on a customer foot and expect that they will be very happy with that purchase.
Adidas shoes are not mediocre and if our customers feedback is any indication the 2,000+ pairs we sold the past year must be good or we had a large number of deluded customers who chose Adidas over a similar Asics, Brooks, etc.
Reebok is a victim of poor shoes in the past and poor timing right now. The product they were offering now was much, much improved. Unfortunately, they needed to be in the market with that product one year earlier so it had the opportunity to gain momentum. If there is a place in the market for Under Armour, there certainly a place for a company like Reebok with a history and support for the sport.
Consider that Nike specialty product was horrible 2+ years ago before their development team got things right. Their sales doubled in our store in one year. Reebok IMHO was on the cusp of achieving similar success (relative to their brand position), though they were at a disadvantage as they had allowed their brand to become irrelevant by lack of attention over the years. Unfortunately, they spent a lot of time and money to show they were serious about being involved in specialty running. And right when it was time for stores to take product and allow the consumer to decide, they cut their sales force. Without sales reps working with a store, you have no future as every other brand has people vying for your support.