Easiest way to get a Borgata black card?

[NickMPK]

So I see the ads at Borgata that you can get a black card by showing them a higher-level card from another casino. Are there any casinos where it is especially easy to get an upgraded card, which I could then use to get a Borgata black card?

I know I can get a black card if I get 1000 comp dollars, but that's never going to happen since I am only in AC a couple weeks a year, and spend half my time at Borgata playing tournaments anyway.