[bookofjoe]

>Satellite data is extremely idiosyncratic. It's coarse (~10m at best)

>The best commercially available spatial resolution for optical imagery is 25 cm, which means that one pixel represents a 25-by-25-cm area on the ground—roughly the size of your laptop.

https://spectrum.ieee.org/commercial-satellite-imagery

[RosanaAnaDana]

I regularly use up to 3cm aerial imagery.

There are many very nice commercial products available.

[DennisP]

Are there any products available for casual users, just paying for a few images?

[crucialfelix]

There are many now. You can buy a single image, even schedule to take a live shot at a specific time.

https://skywatch.com/earthcache/