1rainman many people would disagree with you concerning Meyer Lemon as being a quality lemon.
Depends on the use right? For most classic culinary uses, true lemons are a better idea since they're more aromatic, flavorful, and the juice is really acidic so a little had a big impact.
But for mixed drinks or lemonade, the lower acidity and higher sweetness of Meyer lemon means you can use much more of the juice, which should generally mean more lemon flavor then if you just used a small splash of true lemon juice.
Different courses for different horses. Meyer isn't really in the same class as true lemons since it's a sweet lemon not a sour lemon. Comparing them is like comparing sour and sweet oranges.