POLL: To eat free food or not to eat free food?

That is my question. Here's the rewind:

HB and I have settled on Fox Hollow, contracts and all, so we're all set with the reception hall. However, all the other places we've visited don't know that. In fact, they've all called/emailed to ask when we'd like to set up a tasting.

All of the other places we've seen had very appealing menus, so I wouldn't mind a taste. But, is it right or wrong to take free food from other caterers when you've already signed contracts?

Please advise in the comments.