You'll see plenty on the floor of any MagicCon, and AncestralMTG has dozens of graded and ungraded copies of Black Lotus for sale
Does Do-It-Yourself Seraph keep the text boxes if it leaves the battlefield
3 mana to draw 3 at instant speed and discard a land is a pretty good deal, and in some decks in this format, discarding nonlands will also be beneficial
Synergistic Removal Continuing with the token deck example, if you need a boardwipe, Hour of Reckoning would be a much better choice than say Wrath of God in our hypothetical deck
Oh, and Concordant Crossroads is a great haste-enabler, drop it down when youre ready to pop off
It is true that it took a while before Brainstorm was recognized for its true power, but drawing three cards was always very good even with the drawback of having to put two back