Read the books. They're sooo much better! If I were you I would at least read them once. I did the most retarded thing and watched the first movie before I read any of the books. I did regret it, but thank god I only did that for the first one! You HAVE to read the books! Do yourself a favour! Please!!
Yeah. You are definitely missing out on the experience. The first 2 books are better than the movies. Books are always better than the movies. It allows you to use your imagination. Also, there are subplots in the second book that were'nt even in the movie. You're really missing out by not reading the books.
i did the same thing as u did untill last summer, i watched th movies and i had a copy of the first 2 and never even touched them. 1 day i was sooooo bored and dicided to read them. the movies practiccaly cut out everything! they cut out peeves, sir nicks death day party, and in the second movie i was craking up histarically when harry and ron got caught by snape but when i saw the movie i was like what the ****! the books are soooo mcuh better. if u don't own a copy get all 5 of them now. i can't see som1 disliking them.