SLR will eventually be eliminated by micro-single. Do SLR need to be sold in advance?

This is completely unnecessary. As long as the current camera system can meet your shooting needs, it is enough. In fact, photographers in many professional fields still want to buy SLR cameras, although they know that nothing is the development trend. Moreover, most of the fuselage is not preserved, and so is the SLR. As long as there is no need to upgrade the fuselage, there is no need to force yourself to change. If you talk too much, you can sell old SLR lenses that you can't use, such as Nikon's D lens. You can give priority to your next camera system.