When will I get a seat?

[DrunkIrish05]

Ok, I'm a call-ahead noob, but I called ahead tonight cause I knew it'd be busy (st. louis mardi gras). Anyways, I called at 9:20 tonight and put my name down for 1-2 NL (usually around 5 tables running on a weekend night) and asked the lady how the list was looking. She said "there's about 40 people ahead of you."

When should I get to the casino? I want to get a seat, but dont' want to wait there for 2 hours.