MDFC lands get their power from flexibility, that's why
Of course, Id argue there are even two tiers below it if more grading companies are included: E for less popular but still reasonable grading companies, like GRAAD (Italian), Platin (German), CGA/ARK (Australian), EG (Spanish), etc
Since play boosters will match the cost of a set booster, which is roughly $1 USD more than a draft booster, Limited events will probably adjust their pricing to reflect that
It looked like he was trying to sell Gamestop a graded Moonbreon and the guy would only offer $10 store credit
Some players may try to Cascade into Crashing Footfalls and the like, but even casting a basic Tarmogoyf or Lightning Bolt is well worth the mana
Great gift for collectors