Yes large orgs will probably want to contact you for pricing but you are leaving business from smaller orgs on the table. My first reaction when seeing the "contact us for pricing" was "ok whatever I'll just go use a competitor"
Honestly and clearly displaying the price of products and services is not difficult. When that's deliberately not done, it means some fuckery is afoot.
For "enterprise" and large scale corporate sales, it usually means large contracts are negotiable on a case by case basis, but even then, the pricing will still fall within a range that's not difficult to explain at all. The only functional reason to withold information is to force potential customers into contact with salespeople and use everything they can to close (regardless of whether a customer is a penny pincher or not).