On the other hand, it may be one of the last places left where you can actually naturally advice.
Stuff like...
"Oh I can tell you a thing or two about the legal complications of cubesat launches, my company did this for the last 12 years. [...]. By the way, this is our website"
...is probably more effective if a potential client stumbles over it than 100,000 "targeted" facebook ads, especially if you serve some highly technical niche.