Saabs are not bad planes. They do have their pluses and minuses. Pilots tell me that they are pretty good cold-weather planes. They seem to be fairly reliable and efficient. But, newer jet competitors are available that can handle more cargo and go faster.
Today, on my ramp, for example, we took a big delay on a flight with a lot of military people (who always pack huge duffels) for being overweight and had to pull passengers. If it was a CRJ, it wouldn't be a problem. It seems like you can literally fit a small car in the cargo bin of a CRJ. After all, the CRJ cargo bin is quite sizable and the max weight limit is 3500 lbs.
I would love to see Saab reenter the commuter aircraft market with a jet version of the 340 though. Maybe I will see N423XJ at work tomorrow and it will have some new mods