On the other hand, if you want ConTeXt distributions to always remain almost exact replicas of Hans' machine (like the current minimals are), fine. But don't expect them to be widely usable. The average user doesn't have the knowhow required to happily juggle with dozens of configurations sitting side by side.
In fairness the average user shouldn't be using any luatex/Mk IV stuff yet - it is still in alpha/beta. I have whole production environments built around ConTeXt minimals and they are extremely usable across multiple architectures, mainly because they are still based on Mk II. Mk IV is not (meant to be) production level yet.
Just my humble opinion... :-)
Fair enough ... if you know bits and pieces about TeX and aren't afraid of the shell you'll certainly have the MKII minimals up and running at some point ;-) However, think of someone who has never heard of ConTeXt before but has been persuaded by a friend or colleague to give it a try. Perhaps they've been given a template document for a thesis to start from. If this person has a Mac they'll probably want to download some disk image, have ConTeXt deployed on their machine by the Apple installer program, fire up TeXShop and start writing their thesis with ConTeXt right away. This is what I'd consider the average user. With the current minimals this is impossible ... Oliver