There are a lot of commentaries about the crash of the Superjet in Indonesia, killing all 45 people on board.
Almost all commentaries point out that future Superjet sales will take a hard hit because of the crash - not so fast, I would say: if the reason for the crash was a pilot error, then why should that hurt sales. In the end the Superjet is a modern design with all the latest western systems in it. Fuel burn could of course be better - the design of the SaM146 engine is, like the PW6000, build upon low maintenance costs, not on lowest fuel consumption.
Remember the crash of one of the earliest A320 in 1988 at Muehlhausen-Habsheim: a pilot error also, but many pilots pointed to the fly-by-wire system of the A320 as the root cause. Did it hurt A320 sales in the long run? Definitely not.
Also the crash of one of the A330 prototypes (due to a wrong autopilot input) did not hurt A330 sales.
So I would be careful to predict a slump in sales for the Superjet - it is too early to draw conclusions before we do not know what happened on board, especially in the cockpit.