I'm fortunate that -every- public safety agency (as well as every public works) in my county has stayed VHF analog.
Part of it is lack of funding. Who am I fooling, all of it is lack of funding. Lots of small agencies, rugged terrain for 80% of the county, limited infrastructure, lack of money buckets, it all adds up to nothing really changing for the foreseeable future. Even CalFire is staying analog for the foreseeable future. No way to replace all that gear. Even if they tried, P25 will probably be dead and buried by the time they finished.
Sometimes technology gets pushed too far. Sure, there are "neat" things it can do, but if you don't need that cool function, the older stuff works well. I'm really hoping that starts to catch on in smaller agencies. With federal funding not as prevalent as it was 10 years ago, I'm betting the rush to digital is going to slow a bit, or at least shift from P25 to something more reasonably priced. Keeping interop frequencies analog is a great first step.
Sure, digital trunked systems work great where it makes sense to deploy them, but that doesn't work everywhere.