you paid $50-100 for VHS, betamax, laser disc, whatever to own it forever. You didn't pay $20 to blockbuster to rent a movie for 2 weeks (well, unless you forgot to rewind and were hit with late fees I guess).
If they charged $20-30 to own Nobody forever I wouldn't really care, but $20 to rent it (for how long?) seems pretty lame. I don't mind too much, whatever format lets groups get web rips out in UHD format is fine with me, but I don't understand why they are renting at such high prices but not selling. I'd pay out $30 to buy Nobody, Godzilla vs Kong, Mortal Kombat, etc but I won't pay $20 to rent it for one or two watches.