Every loco I owned was RailKing PS2.0 until 2020. I just recently ventured into Lionel (used) TMCC given the MTH closing pending. But, I agree with all said... RailKing definitely provided bang for the buck. I worry that the lack of competition with MTH gone, will really hurt pricing by other(s).
Anyhow, here's a picture of one (and a half) of my favorite RailKing engines, N&W J609 and heading eastbound out of frame is WM Berkshire: