Pricing and flight to quality

[MCoxon]

Hi - just wondering if any one has seen similar trends. I've been looking at auction prices realized, for cards I've purchased in the past 3-5 years

I'm seeing very large jumps on:

* Mantle, Aaron, Mays, Jackie Robinson. Example: 1953 Bowman Mantle PSA 4 from $550 to $1050 (purchased 2017); 1955 Topps Aaron from $250 to $646 (purchased 2017); 1953 Satchel Paige, PSA 5, from $360 to $750 (purchased 2016)

* Early 1980s rookies, especially Mattingly, for example 1984 Topps PSA 10 from $150 to $520 (purchased February 2020)

* Any Jordans (1985 Nike promo in PSA 9 from $300 to $1500 since Oct 2019; 1986 fleer sticker in PSA 8 from $300 to $1500 or so); 1980 Bird/Erving/Johnson in PSA 6 from $270 to $1053. This is in the last 6-9 months


I'm seeing very little appreciation in lesser stars or regional issues
* Feller, Banks, etc. haven't moved much in the 3-5 years, whether Topps, Bowman, other
* Regional or non-mainstream issues like Kahn's, Bazooka, Picture Packs, etc


So it seems like Topps and superstars are seeing massive jumps, while non-stars aren't. Is this something expected and seen before in previous crises like the 2008 financial crisis (I wasn't collecting then)?