For the Pro market, expansion and user customization far outweigh form-factor. I have a 2000 sq ft lab space and 500 sq ft office, what do I care about the form

For the Pro market, expansion and user customization far outweigh form-factor. I have a 2000 sq ft lab space and 500 sq ft office, what do I care about the form factor of the Pro if I can't throw in my stock NVIDIA GPUs and any arbitrary hard drive?