It seems from reading this thread that some people sold their previous MorphOS hardware + sometimes license to afford new HW + new license. Seems to me it allows to have more MorphOS users at the end instead of having people collecting multiple machines.

Also it seems that with the MacMini (Efika before but with a much more limited HW) the total cost of MorphOS capable HW + MorphOS has been lowered greatly.

I am not sure the "other people outside of the community" would buy it for 99 ? instead of 150.

Also it is not like MorphOS users spend a lot of cash on MorphOS software for the last years. With the free upgrades MorphOS 2 has been quite inexpensive over the years.
I am not saying it should be more expensive but If you did not buy it and missed enjoying it for the last few years because of a difference price of 50 ? it certainly mean you may have had other reasons not to buy it.