It's one of the few things you can't see during a showing/ visual inspection and I've seen issues up to $100k with sewer lines so it's worth the $150 to send a camera in and see what's going on.

I am not telling you to do one thing or another  Also, i believe that FHA will not allow renovations to a home unless it’s already livable with minimal to no repairs visually needed but go check.

There is a crawlspace directly under-that has visual stress cracks on the outside walls at each end and the walls appear starting to fall outward. 

I'm currently reading David Greene's book on BRRRR and was curious about how you all go about planning or visualizing added rooms to potential purchases. 

If there's a dispute on the disposition, having visual evidence of what you're asserting is really important.

Mice are filthy and when their fecal matter dries up it becomes airborne because it's powder and it's full of diseases and it's hard to see visually when it dries up.

Staging your house well can help you attract more attention from buyers, which ultimately helps it sell faster and maybe for a higher price than an unstaged home (see visual):What Are My Staging Options?

I recently used a structural engineer to do a visual inspection of one of my single family rentals. 

If you could visualize a realistic first deal, what would that look like? 

So that should give you a visual.