A person with an attraction to money and/or riches, or a rich lifestyle.
mammon - money or riches (Greek in the Bible)
-phile suffix - a person with an attraction to something
Buddy remarried a mammonaphile, so he's been eating caviar lately.
That guy loves bling so much, he's a true mammonaphile.
No dude, he doesn't love ghetto blasters like an audiophile, he loves money, so he's a mammonaphile.