Stick with what you are doing Hans.... which is a great job. Ignore those who must have a new toy NOW and, or keep wanting something incorporated.
There is useful exercise to be had from swapping over mono band units, especially if you have to stand up to do it. That's beneficial in an increasingly sedentary population.
Not having all your eggs in one basket means you have working rigs if one of them goes faulty. You thus have something to play with while fault finding the unhappy one.
