I also love the look of Le Creuset items. I love the colors because I like having a "coordinated kitchen".
I ended up getting off my registry some of their bakeware. I think its nice becuase it all matches and I can have a dinner party and bring things from the oven right to the table, vs. using a a baking pan that isn't so cute. Certainly there are less expensive pieces of bakeware that also "look nice" but I like having the matching pieces. I also have the 3 quart roung covered baker. I found this is nice to do things like risotto or put in mac and cheese. It is Oven safe, but not stovetop safe so that is something to keep in mind (it isn't cast iron)... but again, when i use the covered baker, and my baking dishes everything looks nice together when you are pulling together a big meal. Plus its pretty cherry to have some color in the kitchen other than white or clear or steel.
I have been waiting for the 4.5 quart dutch over to go on sale. I'm hoping to get it soon. Sometimes they pop up at homegoods and marshalls too for around $150.00.
I think the dutch oven is a must buy. It is so versitile. But I think if you want inexpensive additions that match and make you feel like a pro, go for the bakeware as well.