They _are_ almost identical. Like in Photoshop, there are many different options for Sharpen, Blur, etc. You will find slight differences while using them. If you know how to use one, you can use them all!
I just looked at some completed auctions on ebay, with actual cards that were sold (dozens of the card you are talking about) It looks like a "graded" PSA 9 card is going for about 50 dollars. A "mint" card that is not graded is going for about 25 to...
The card is the card. Getting it graded it an expense. It the world of collectible card games the most expensive cards (excluding a few ultra-rare cards i.e. M:tG's Summer 94 blue Hurricane) are only worth about a grand. Getting it graded does not in...