Just got this in an email from MTH. It sure looks like MTH is producing their own offerings, so all may not be 'dealer only' production runs? Note that it says to contact your authorized MTH dealer, not just one specific dealer.
------------------------------------------------------------------------------------------------------------------------------
May 18, 2021 - M.T.H. Electric Trains will be releasing several limited-edition releases of the Premier 55 Ton All Steel Drop Bottom Gondola Car in four different liveries. The cars will be available in two different car numbers and will begin arriving on M.T.H. Authorized Retailer shelves in December 2021.
Check out each of these offerings HERE.
These items are available to order from your local M.T.H. Authorized Retailer.
And there was another one was in the sidebar:
M.T.H. Electric Trains will be releasing several limited-edition releases of the RailKing Boxcars w/Power Meter in four different liveries later this Fall. These unique releases, including entries in our series of Halloween and Christmas series, are expected to arrive in October 2021.
Check out each of these offerings HERE.
These items are available to order from your local M.T.H. Authorized Retailer.
As for catalogs, for what these must cost in full color, printing, shipping, distributing to dealers, etc. I am truly surprised ALL the train companies haven't gone to an 'online only' catalog by now. This has to be an enormous expense, even more when putting out two per year. I like the print copies as much as anyone, but I think there will come a time when it is just no longer cost effective to produce a print catalog. Who knows, maybe the money saved from going to online only catalogs could be put to new tooling for some new and never before produced O gauge items?