Best: most every thing already stated above, diversity, and great folks who enjoy our hobby
Worst: #1 on-going loss of manufacturers... Weaver, the original Williams, McCoy, and now MTH +++
#2 $1500 +++ items, they are great but out of reach for most [as a kid the $5.00 Lionel box car was a lot and a 49.99 GG1 was over the top! Oh, to be a kid again!
#3 QC issues, unavailable repair parts for relatively new (made in Asia) stuff, and electronics that die [ pre-war and post war stuff keeps chugging along ]
#4 fewer and fewer Local Hobby/Train Stores, mail order and train shows just aren't the same.... LHS had/have that wonderful musty odor with orange and blue boxes on their shelves..... [ a little bit of heaven for us baby boomers back then and now.. if one is still open nearby] .
#5 Santa Clause doesn't leave Christmas trains under the tree or on the hearth during his annual sojourn any more!
#6 That's all for now, folks... stay well !