To all with interest in preservation

I agree that only the hardware systems that are used most frequently have emulators or simulators. Which translates to the fact that the hardware systems which are used by just a small percentage of the community will not have an emulator written. Since there are so many of these hardware systems, only a small percentage of all of the hardware systems, specifically the hardware that is used by most users will ever be emulated. Rarely, projects like SIMH appear which attempt to handle a large number of different hardware systems. But even SIMH looks at only a very small percentage of all the different hardware possibilities. In that case, how do you manage to retain the hardware which you use in a running state? For many years, I collected PDP-11 hardware until about 2002 in order to have sufficient spares. After Ersatz-11 became so enhanced, that was not longer necessary. What do you do for your hardware? Jerome Fine