Upgrade?

I feel pretty much the same about my bike

Dual wheels? Pah!! My i10 has quad wheels (and I need every one of them)!

My opinion for what it's worth, is that handling is as much a feature as anything else. I've been using Pentax dual wheels since I bought my Z-1 in the '90s and I'd find it very hard to buy a Pentax without them. Beyond that it's the users choice.

I believe it's better to buy a camera you can grow into rather than one you'll outgrow soon - as long as you're sensible with the budget you can afford - not that I abide by this part very well!