If you add up the costs of Nazgul5 HD (probably the cheapest BNF 5 inch HD kwad worth buying), DJI FPV goggles, a controller that you won’t outgrow in a month (either Radiomaster TX16s or Tango2), a charger, parallel board, lipos, a sim to practice acro, etc. you’ll probably reach something awfully similar to that $1300 price tag.
As a new Mavic Mini owner, the one feature I'm craving for is FPV.