This is probably some old post that i found googling for info,
I just got a 35mm 1.8 to replace the very slow 18-55mm.
The 35mm 1.8 prime (paid $100) is definitely a better lens than the 18-55 kit.. i can see the difference.. the Autofocus is smoother on the 35mm (less noisy)
As for zooming with the 35mm, i too, use my feet to zoom.
Little intro: i used to be a semi-pro photographer, i did few weddings and other small events. I was using mainly Canon 5D MK2 anmd Nikon D300s with a 17-55 2.8 and sometime with Alienbees flash. I never switch lens, i prefer using multiple dslr with their own lens and settings...faster and quicker.
Unfortunately, One day i had sell all my equipment (+$7000.00) to buy a house LOL
Now im slowly getting back to photography as my wife wants me to take family pictures...damit. I was given a D3200 kit to start with which i find very flimsy compared to my ex-D300s. This d3200 lacks so many features.. It probably cannot do HSS...anyhow.. if i get richer i will upgrade again but for now im just some ex-photographer who needs to take family pictures the cheapest way possible.
I threw that 18-55 very quick.. got this very plastic 35mm prime for half the retail price and using a cheap yongno flash.. You know what, i get photo that are almost as good as i used to get with the D300s+17-55. Pictures arent exactly the same, but arent bad either.. it's just more tricky now and it requires more work under photoshop.
I think you can use the 35mm as a walk around lens presuming you won't do any wide...
By the way, for more heavy lenses like the 17-55, i highly recommend using a Rapid Sling strap rather than the (look at me) disposable neck strap that are given with most DSLR....
I think im gona enjoy the 35mm as a walk around lens too and try see how it performs for strobist photography.