"There's a lot more to recording a band than having an expensive microphone."
Indeed there is. Great point. Really great. Having _multiple_ good microphones is just one tiny necessity. It's just one tiny expense compared to everything else, and so that is why I linked to _one_ item. Do you want me to provide links to mixing boards, high-end reel-to-reels, synths, pianos, rental prices on orchestras, estimated costs of studio musicians, singers, engineers, producers, etc, etc? Because all of those things cost more than even very expensive microphones.
Hope I've cleared up the bewilderment.