These systems are designed and optimized to be used for audio production. They are a far cry from your laptop -- or any other "off the shelf" PC.
The system you describe is encased as a rackmountable unit. You commented, "system can be rack mounted... so basically I would use it in a rack to replace my laptop for around the house". Just to be clear, it is rack-mounted (not "can be"), and while you can move it around if necessary, it's really meant to be stationary, in a rack.
If you need to move "around the house", then maybe you should be looking at a laptop. I'm not sure if Sweetwater offers a laptop solution, but there are other Custom DAW PC builders who do -- for example, ADK Pro Audio and Studiocat (Both of whom are well known and regarded here on these forums).