As frustrating as delays are, they are really fairly predictable in today's market - add 6-12 months to the original target date, and you'll be close. I'm just thankful that Athearn is re-running both of these; even though I don't model any of the railroads that had the Challenger, I'll buy one because they are so well-made and iconic models; ditto with the BigBoy (still haven't figured out a good rationale for seeing a UP BigBoy on the NKP in 1957; a Clinchfield Challenger is at least a bit more plausible, but it doesn't matter - these are just superb models in all ways and ones I'll buy "just because.")
John C.