Once you get to the 8+ level, losing one tapped land means very little, and the card advantage is huge, especially since there's no exile clause to stop you from re-casting a permanent turn after turn
A card with a high grade is generally considered to be in better condition and may fetch a higher price on the market
Of course, Thragtusk isnt here on pure beats because when it leaves, you make a 3/3 dude for your trouble
Here is a possible list for the UWR miracle control deck I suggested might be one direction to improve on the miracle theme
The Most Expensive Card: The Pristine Alpha Black Lotus holds the all-time record at an estimated $3,000,000
What I want to look at are the cards that can find at least two distinct types of card, ideally for two or less mana