My line's only a single track, a passing loop and a couple of sidings. runs perfectly well with DC and it's wired with sections, although I run DCC most of the time and the majority of locos are chipped, a few having sound.
For me, I chose to go DCC because I wanted to get to grips with the technology, to be able to drive any loco anywhere at any time and to try out sound. Points are also under DCC control. My N scale system has way too many locos to convert to DCC now, but chipping my small fleet of large scale locos has been a manageable exercise.
I run an NCE 10 amp DCC system, with decoders of several different brands in the locos. The NCE is powerful yet easy to use, sadly their wireless system isn't legal in the UK and that's one thing in favour of other systems such as Massoth when it comes to an outdoor line.
I'm definitely one the side of NOT running unchipped locos on DCC, it's not good for them and why risk it for price of a decoder? Some Piko locos have been known to blow capacitors if this is attempted. As it happens, NCE systems don't support the zero-stretching fudge that others have to allow an unchipped loco to run.