Some are only monochrome or some of the functions are monochrome only. If one function goes out, you may lose the whole machine and all functions for the repair period. If you have to compromise on too many of these lower priority factors, you may want to reconsider or make sure the MFM you consider has the features you want. Inkjets are smaller and lighter weight than Lasers. Also require less space for paper handling.
Lasers are still much faster especially if they have their own processor and memory.
Lasers will generally last longer and experience fewer problems but are much more expensive to repair when necessary. 5. Lasers are still better although inkjets printing at highest resolution are catching up. But then you can afford some professional inkjets or dye sublimation machines that are almost indistinguishable from photos. Many inkjet warranties have next day replacement or immediate exchange - Laser warranties are still business oriented towards repair. Look them over carefully or you might be without any printer for some period of time.