domain Adstraining.(com)

What comes to mind is quite literally "a training course for advertising"

...I consider at $80 you're being low balled, and can get better (with an end user). I suggest offers accepted, until a better offer comes along, or they revise that offer to something better

Edit: I read this wrong, I thought you said you got an offer of $80 (lol). Yes, secure the domain ...I consider it decent

renew and pay the 80$ ^^