I am considering building out a system for use now with virtual events as well as building for the future of hybrid events. Using the reference systems and recommended hardware, I have two comparably priced yet rather different approaches, and I'm pondering which route to take.

System 1: Rack Mount Self Build
iStar 4RU Case
ASUS Prime X299 ATX Motherboard
Intel Core i9-10900X 3.7 GHz LGA 2066
G.Skill Ripjaws V series 32GB (4x8GB) DDR4 4000 RAM
Crucial 1TB M2 SSD
Corsair Hydro Series 120mm Radiator
Gigabyte AORUS GeFroce RTX 2080 Ti GPU

System 2: Laptop Portable
Alienware m15 R3 Gaming Laptop
Processor
10th Generation Intel® Core™ i7-10875H (8-Core, 16MB Cache, up to 5.1GHz w/ Turbo Boost 2.0)
Operating System
Windows 10 Home, 64-bit, English
Video Card
NVIDIA® GeForce® RTX 2080 SUPER™ 8GB GDDR6 with Max-Q Design
Memory
32GB DDR4 2666MHz
Hard Drive
1TB PCIe M.2 SSD
LCD
15.6" OLED UHD (3840 x 2160) 60Hz 1ms 400-nits DCI-P3 color gamut + Tobii Eyetracking technology

Obviously, with the Rack Mount version I get a beefier CPU and GPU. The MB I specified also has the capability to run multiple GPUS (not sure if that is an advantage to vMix or not) as well as add in a capture card for local video sources. Of course, with a TB3 enclosure, I could just as easily add the capture card to the laptop as well. I also get a 5GB LAN port on the self build vs the 2.5G on the laptop.

Use case (currently) is primarily vMix calls with up to 3 streams and a single record. Alternately, I use Zoom over NDI from outboard computers, or use an external computer for PowerPoint Graphics, so I can use Presenter View locally. I expect in the future to use vMix to replace my current small ATEM system, so will need camera capture as well as audio input and output, most likely with a ASIO interface so I can have individual control in vMix.

I like the rack mount for power and expandability, while I like the laptop for out of the box ease of use as well as portability. Cost wise, these to systems are within a few hundred dollars (I already have a Windows license I can move to the rack mount build, as well as monitors and peripherals), so given my use scenarios, which one would you choose and why?