I remember reading an analysis of 100 seat jets 10 or 15 years ago. Small DC-9's and the Fokkers. The Fokkers never sold well. They said every time somebody puts a 100 seat jet in a market, they wish they had something bigger.

Maybe that is why we canned the 700's. For a little more money, we could get a lot more seats.

The E-jets have sold reasonably well, but I wouldn't call the bigger ones (190/195) a blockbuster success. In the US that is partly due to scope clauses, but the majors fly very few of them.