Thanks!
Yeah, I was unsure of stuff like that before, but so far I've found some parallel type cards or variation cards that beckett doesn't list. Maybe it's due to scarcity in the market, not so much total run scarcity. I found 01-02 Authentix Courtside classics also had a patch/seat variation to the warm-up/seat run. They are "gold versions" and are serialled on the back aswell. Beckett only list the one standard memorabilia run. These are extremely hard to find. The same with the Final cuts patches as I mentioned before.
Another example is with 02-03 ProSign auto's. There is Kobe, Garnett, MJ plus others, but beckett don't list most of the cards from that set including the players just mentioned. There are 28 auto's in total and only about 6 listed. I put it down to how scarce they are on the "second hand" market.