I don't, I have an old iPad that gets occasional use, but that hasn't changed since getting the plus. Overall I probably use the phone a bit less than I did with the smaller one's just because the large size is more inconvenient to pull out quickly, and if I'm going to be spending a long time browsing the internet I'd rather use my laptop.Interesting....
Do you have an iPad Air or iPad mini that has been used less since acquiring your 6+? Would your iPads get more use if you want back to a smaller phone?