Where are the rest of the episodes?

Why aren't these whole seasons? So they can release them later and score twice? Sorry to the critics but I think the episodes on the Best Of (rented it) are great (season 3 anyway) and I want the rest of them on the dvd set I buy. I'm not buying a "half of" set if they're going to release a complete set later. And why am I sure they're going to?

They can't possibly think episodes with The Doors, Henry Fonda, Ray Charles, Jefferson Airplane, not to mention special videos by the Beatles (could go on forever) as the guests don't belong on a Best Of set, they must be saving it. I don't want to buy it twice, why not just give us all the eps at double the price? grrr... :) Don't like doubledipping...