Why do some Items Show ‘Click to Get Price’?

Why do I have to Click to Get Price? Why can't you give me the price?

Most items already reflect Mega Sale discounted pricing. For select products priced below the manufacturer’s suggested retail price, you’ll need to click “Email for Mega Price” or “Click to Get Price” to receive the sale price. This will open a pre-filled email in your email client, and a member of our team will follow up with the sale price shortly. Discounts cannot be applied to previous purchases and cannot be combined with any other promotions.