Dale, yes, there appear to be many missing sales from both lists.
As I needed the 314 to finish my set, I have closely watched the prices of that card(unfortunately, I bought on the way down, but I am complete)....it maxed out at a price of $6k for a PSA 5 in mid-March. This was a legit sale as the card ended up in the buyer's PSA registry set(not mine). Very few copies were available during Jan-mid-March periods, thus the peek in prices.
https://www.ebay.com/sch/i.html?_fro...&LH_Complete=1
I purchased my Mathews, a decently centered PSA 4 for like $4200 last summer. As this was a large purchase for me, I also watched it's price and values stayed fairly close (within 20-25%) of what I paid until only recently, when like the Campy in March, the 407's prices are now all over the place. Anywhere from $16k to $7k for a PSA 4.
https://www.ebay.com/sch/i.html?_fro...te=1&LH_Sold=1
My point is, during this year there are times when nearly equal mid-graded copies of these two cards have sold within a close proximity of prices (Mathews 1.5x more than Campy). On Dec 13 2020 a PSA 5 407 (albeit oc) sold for just over $5K, while the 314 PSA 5 sold for $6k in mid-March...this was likely what I was thinking of with my post. Now, same graded copies of these two cards are selling for 8x the other's price? A month ago this would not be believed as the Campy was soaring and the Mathews seemingly plateaued. Obviously I am glad the 407 card is finally appreciating, but am perplexed by the Campy's fall.
Only in 2021.