the most unfortunate aspect is the loss of Local Train Stores which had MTH as a primary line, for me it will be Mercer Junction [good health to you Dave].
It doesn't matter if you are a Lionel person or primarily a MTH person, less product choice = higher prices, fewer "Mercer Junctions" & fewer dealers heading towards local and regional train shows.
Given current circumstances, MTH's folding the tent couldn't have occurred at a less unfortunate time.