Is it worth it? You bet your life it is!
Apart from the obvious point that you will no doubt save your life one day because you know how to get out of trouble, the IR(R) will open your horizons to a lifetime of flying. No more restrictions in marginal weather (except your own personal minima - choose your own carefully!).
When I got my (ancient) IMC it opened the world to me. I could go anywhere, and did. Thirty years later and I've still only logged 150 hours real instrument time, but just being able to get above the cloud, knowing I can get down at the end of the flight, meant the world was my oyster (at least a UK oyster).
I'm now thinking of doing the en-route IR and reckon that will give me everything. Don't hold back. Do it as soon as you can.