I don't mind someone bragging about whatever they got, but it's the attempt at a stealth brag, that comes off as desperate.
"What you guys up to? Me? Oh nothin' much, just hanging out here with my Lambo, why?"
"Ok, but nobody asked y--"
"Yeah, i also have a couple of Ferraris, but the Enzo's in the shop at the moment, ahah."
--
That said, yes i wish i had his cash so i'm definitely salty, and it worked.