Buying MS SQL is a pain in the butt... Per core licensing with a minimum of 2 at a time now! IIRC it was around R70k for standard 2 cores the last time I priced it. Madness.
Actually licenses are sold in 2 core SKU packs with a minimum of 4 cores per server (2 license packs) at an approximate cost of R40k per license pack (R80k for 4 cores).
With the per user licensing model, you need to purchase a server license (+-R15k) and then a CAL for each user (+-R3,500). This usually works out cheaper if you have less than 20 users.