Spices are super important to me when cooking. You can take a few cheap spices and dress up a cheap cut of meat, or you can make that ho-hum recipe really pop.
There are plenty of very expensive spices out there. A simple conversion chart can save you a ton of money when you're out of a spice or else can't stomach the prices of some of the harder to find ones.
Knowing what each spice does and what meat or flavors it complements can help you make better dishes and create your own spectacular recipe. It can also make you more likely to want to stay home and cook, since if you are a like me, you can't wait to try new recipes.