Currently using a second hand mobo and mouse 1 from the rainforest. The I grabbed my soundcard, m.2 ssd, headphone 1, DAC, amp, mouse 2&3, radiator, cpu and ram from the MM and I have an ssd plus headphone 2 from ebay.
Previously had a about 4 CPUs and 2 GPUs from the MM without issue and a couple of motherboards and graphics cards from ebay with no problem. Can't resist a bargain and most people are just trying to get some money back for their old hardware.