I think it's a great idea to start playing regularly again, now that you've had a reminder that it can be fun - and especially if you can learn not to be too hard on yourself for not being able to play to the same standard that you used to (until you've practiced regularly for a while, anyway). Think of all the good things playing music does to your brain - you'd be in the company of Holmes and Maturin and all those other fictional characters who played the violin to help them think and relax.

Of course, this may have to do with our evil rather benign master plan to have lots of nice, interesting people come round to our house and play music with each other, so there is some self-interest here!