I have mixed feelings because it is very difficult to find a frame that fits you well. If you have your bike set up exactly how you want it (seat post height, saddle height, stem length and rise, handlebar drop, etc) and you know your frame fits you well, then you might save yourself the grief of purchasing a brand new bike. How well does the frame fit you? If it doesn't fit you as well as you would like, perhaps this would be a nice opportunity to find something you like better. Although I agree that you should not have to ride a bike that you don't enjoy, a new frame may not necessarily result in an improvement.

If you're not in a rush, maybe you could keep your eye out for a great sale on a groupset to put on your current frame.

Do what you think is best and take the time to explore your options thoroughly