There is another thread with the same question on it that happened about 3 weeks ago on this board. You might want to do a search and read those comments.
My husband taught for 16 years, my mom just retired after more years than I can count and I have several teaching certificates. My advice is this:
Do what you think is best for your family. You are responsible for her not her teacher. And, only you know what is best for her. So, I say go for it. My son is 4 and when he is in school he will miss at least one week for Disney in November and one week in August for another trip we take. I won't even have a second thought about it.
Let the teacher know. Be pleasant. And, you don't even have to tell them why you are taking them out just that they will be gone. Ask for make up work, if you want it. And, if you do ask for it, please make sure you do it. It takes them extra time to pull that together. Used to irratate my mom when parents would ask for it, she would get it all together and then never see any of it return. Frustrating.
The memories you will create during that time are ones that will last a lifetime. And, yes, Disney is VERY educational. And, if your daughter falls behind you can hire a tutor to get them caught up.
GO FOR IT and don't give it another though. Have fun!