Seinfeld character in the show was financially successful. He could easily just lend $5k to Elaine when she wanted to rent an apartment above him (her rent was

Seinfeld character in the show was financially successful. He could easily just lend $5k to Elaine when she wanted to rent an apartment above him (her rent was $400), or buy a jacket which his friends assumed cost around $700 or even a $1k.