RDP is basically streaming video P2P accross the web with a refresh rate of 30 frames per second. Each viewer's workstation has an RDP client installed which communicates with the RDP server on the host. Since my propsect wants to start out with 15 seats, I did the math on the TS CAL's and it's within the prospect's budget. We also put together a server config for under $5K that can scale up if needed. Windows Server 2022 and SQL Server 2022 Standard editions are also within budget. I'm even looking at Wyse 3040 Thin Clients for the workstations, which I can get for ~ $75/ea.