Thanks for the info WHBM
Right now the issue at Aspen is they have a 96 ft wing span limitation so the E2 series will not work. This 96 ft limit is a non conforming feature of ASE due to a less than design separation of the taxiway and runway. The FAA wants the limitation gone and will not approve Federal funds without the airport layout becoming compliant to DGIII.
That leaves only the E170 as the only passenger jet in production that meets this limitation. The local bun fight is about making the changes required.
The BAE 146 was before my time but it was the Aspen workhorse for years along with the DHC-8.
If the airport becomes DG III compliant it opens up the E2 series which looks like a good choice. Right now the airport is getting painted into a corner.
ASE has a huge amount of private jet traffic and the 96 ft limit has little impact there, only a few models are excluded. It is the commercial service that is impacted.