I keep seeing Rivians for sale on FB Marketplace for $100k+, with low miles. I thought it was just dickheads who overspent on a vehicle that turned out to be no

I keep seeing Rivians for sale on FB Marketplace for $100k+, with low miles. I thought it was just dickheads who overspent on a vehicle that turned out to be not very useful. Now it seems it's just poorly disguised scalping? I do not understand the obsession with waitlisted electric vehicles.