A MEP without an IMC/IR would look a bit strange too me. The type of flying in a multi-engine is normally geared towards touring under IFR, isn't it?
If you are not keen on the idea of cloud flying, tailwheel and/or aerobatics seems to be good fun.
I have an IMCr and apart from the obvious of making me legal in the UK, and capable of outside uk, to fly in bad weather it has improved my VMC flying experience. Before the IMCr rating I found it hard to relax fully when I went longer distances and staying for for the day or weekend. VMC in 3k vis on hazy days is also something I'm relaxed about nowdays.