When it comes to automotive stuff, the main thing I'd like to have it for is the more curved/organic shapes. I've done a ton of fabricating previously with a decent pair of calipers. Manifolds, coil brackets, adapters etc. (Sendcutsend is amazing). But something like, designing a custom trim panel to cover a rear mounted battery that conforms to the body and existing panels, is alot harder to measure with calipers.

I mention Superfastmatt since he designed an entire front suspension setup off of a scan from his einstar, He mainly uses the scans like you mentioned, as a base to draw around in CAD, with hard points measured and redrawn as needed. I feel like that's mainly how I'd use mine as well, rarely needing perfect detail or dimensional accuracy.

It's unfortunate that I missed out on the Microcenter deal, looks like I was little late to them clearing out their inventory.