The mana discount is sizeable, and the haste will often be incredible, especially in conjunction with attack triggers such as Raksasha Debaser, Balor, and Lord Xander, the Collector
I might be able to see this perspective if the only counterfeiting problem involved dual lands, Power Nine cards, and other absurdly expensive, unreprintable Reserved List cards, but the demand for counterfeit Standard cards, $15 Commander cards, and Pauper staples works against the argument that the fake card problem is just about $600 Underground Seas and $2,500 The Tabernacle at Pendrell Vales
You can cash in a 2/2 zombie token to get two 2/2 Zombies, and so on
Like Banishing Light, Oblivion Ring exiles a nonland permanent until it leaves the battlefield
I will point out some that you might want to put in your deck even if youre not fully typal, such as Gargos, Vicious Watcher, which can help you cast a huge The Goose Mother