Zeiss 24mm for NEX6 : worth it?

I'm looking for a very good indoor lens for my NEX6. I use my NEX a lot for family pictures, which are often indoors. Also like to take my NEX with me on vacation. The new 16-50 will be ok for simple snapshots, but I would like to get the most out of my NEX6 so I'm really considering the Zeiss.

I know it's very expensive, but I have the option of selling my Canon 70-200/F2.8 IS Mark II. Don't use that lens all that much except for weddings or paid fotoshoots, but since that's something I'm doing less and less and since I use my NEX *way* more than my Canon setup, I'm really considering upgrading to very good glass.