Oddly enough, I agree with every single one of those rarity ratings, and I've followed the hint books since I've been a member here. I can also honestly say I had no clue a Fester's Quest one existed until this article, though I've still never seen a Wall Street Tip Sheet either.
And I like how you left off the price on the Milon's Secret Castle, didn't I come in second place to you on the one that hit eBay a few months back
I forget my snipe but I think it was low $50s and I can only imagine what yours was since it was the last you needed.
(And in a similar unrelated note, there was a certain SNES CIB on eBay last week that I came in 2nd on, and I think it may have been the last one Wrldstrman needed... certainly at least "one of")