I had a K&N in my 2000LT for around 90,000 miles. My service manager, whom I trust, told me alot of dust was getting through the filter and that I was sandblasting my engine. He recommended I go back to the paper filter, which I did.
Amsoil is making dry EaAM nanofiber air filters for most Harley's and Goldwings. These are superior in every way to wet gauze and paper filters and will reduce maintenance. They are making them in order of demand. I and a few others have asked for them for our K1200's. If many others would do the same, I'm sure we could see them for our bikes.