I have ten pair of shoes active on my Training Peaks log. Most I have had for years and still use. But I use a different shoe almost every day depending on the run (or race) and never use my running shoes for anything but training or racing.
My most active shoe has 1900 KM of wear – multiple applications of shoe goo to extend the soles; and I keep a shoe horn handy to avoid damaging the uppers. All of my shoes are still useable.
Most important to me is to get a good fit initially, and pair with good quality socks.
You might want to consider a different shoe for your long runs. I stick to one brand with the exception for long runs when I prefer a cushier shoe with a bit more toe space that is not available in my go to brand.