My concern is that too many people avoid studying the OT, and as a result, they are unaware of much fine teaching. I have been teaching the Book of Genesis for the last four years...to the same class. We just began chapter 4 last Sunday - and my adult students are amazed at the wealth of information that we have covered so far.
I often get accused of ignoring the Old Testament. That probably comes from the same kind of misunderstanding that you had initially. There are things being practiced and taught in denominations today that are based on the Old Testament, when the New Testament contradicts that which is practiced and taught.