I don't know what it costs a dealer/mfr. to attend York, and I do know that few O scale
structure kit makers do. I also know it costs about $100 to register to attend the Narrow Gauge Convention, (dunno what it costs as a mfr. or dealer, but that can't be cheap, either) and a lot of those same O scale kit builders attend it, who do not
attend York. "Narrow gauge" is only a portion of the O scale interest. Of course,
Indy had very few O scale structure kits last week.