For better or worse it's a disposable income sport. Generally speaking, if you wait for the late season sales you can get the best deals. Of course, if you have to buy outerwear, board, boots, bindings, $1k per person is probably going to be around the price tag. Maybe you can squeak it out for $600-$700. Watch sites like Brociety, steep and cheap for some great deals. Evo, and Sierra snowboards also have some crazy sales online. Your local shop should have good deals at the end of season too. I'd especially use them for boots.
Then there is the whole lift ticket thing. $40-$100 a day depending on where you are at. I take it you're from the Seattle area which overall is one of the more less expensive places for day passes. If you are going to get out and ride a lot, get a season pass. It seems these days a lot of places have a season pass for around $400 and that is a real good deal. I remember in the mid 90's when the same areas were getting $800-$1k for a season pass, usually just for one resort. Several of the $400 deals include multiple resorts. If you plan on riding more than ten times a season it's the way to go.
The good news is, once you have the gear, you won't need to replace it all at once. A board here, boots there, etc. I typically spend less than $500 a year on gear and often times much less than that. I think I am in for about $100 on this season. Pretty easy to swallow on a working man's budget.