Julie,
it depends on where you want the spread (how far up front) but it ranges from $1,950 to $1,500 for a 4-color spread.

Single page, 4-color ranges from $650 to a preferred page at $800-$1,500 again depending on how up-front you want your ad to be. And those are just the media (placement) costs. For most folks, there is also the cost of creating the ad.

You want to play at the top level, you need to have both a good dog and a lot of $$$$ .

Jim