One of our suppliers was taken over by a large company a few years ago. Slowly but surely they've squeezed our margins over the years so that it really isn't worth the hassle any more.
The products are not reliable so we end up with a lot of replacements with all of the messing about that implies. We've had products that have a near 100% failure rate. In addition, the manufacturer is really slow about deliveries as well, around 6 weeks if we're lucky. All told not very good. So we've decided to stop selling this particular type of widget. It just isn't worth the effort any more. We've got other areas that are worth us putting effort into.
What I'd like to know is what is the best way to discontinue a line of products?