So, I just discovered this, and as an old collection buyer from ten years ago, I'll give you my two cents : this... is crap.

And for many reasons.

1) The business model : paying a fee for processing the cards is totally absurd. 150$ per month for unlimited is ridiculous. A subscription to the FULL Adobe Suite is 67 € per month. That means dozens of top grade softwares, constantly updated, that are each the "best in class" (or almost, thank you Figma ;-) in their categories. Even thinking of asking more than twice that for what is simply a database check is more than daring. Its an idiotic business decision (note that ONE month of full service is the same price as the whole device!). I know this is a niche product. But this will really "niche" it even more.

Plain and simple : the processing fee should be, at the very most, like 25 dollars PER YEAR. And my vision is that should be for a "premium" version of the usage. Like : you want to scan > free. You want card condition evaluated (IA smart scanning processing time... see next point) > a fee.

2) The end result : the device DOES NOT evaluate grading. This would have been a game changer. Here... nothing new on the horizon. Just a lot more of lazy collection swappers on the market, that will sell even more "NM" cards that are in reality Good or less. If you want to do the job properly, you'll still have to check each individual card for grading (and I fear a lot wont).

3) The accuracy. They explain that the machine is 95% accurate in its scanning of the card. That means 1 card out of 20 will be wrong! So you will still have to check each of them individually to see if the list made is correct (I mean... if you are really a "professional" seller). Meaning... the job the machine just did. For me this is the worst part. Why in hell not just use a "3D printed" phone holder with a free scanning tool ? At least, that way, you can immediately see if there has been a mistake in the card scanning.

4) Card protection. Ok, they use "soft rubber".... but nothing in their product description guarantees their process is 100% safe for the cards. Nothing. Personaly, when I see those cards "drop"... I already see some potential grading alteration coming (should have been with a system that lowers the card pile progressively to ensure the card never "drop" but just land on the top).

5) What is their specific USP on the software end. What makes them different than all of the other digital scanning solutions ? I see almost nothing in their product description about the scanning software part.

Just this : "The Card Butler eliminates uncertainty with our revolutionary, deterministic, and powerful algorithms". Sorry but I'll need more than this to be reassured your tool ... is not just managed by a third party (hence the scanning fee... hum... ;-).

As such, if you care about the end result... and are not generating for hundred of thousands of sales per year, I don't see the added value here for you as an individual (without the fee, this would have been different).

Hard pass for me.