...and "it's too difficult" is a terrible, terrible excuse. If it's too difficult, your system is poor.
I've said this before: there are people out there would would voluntarily offer their time to help implement these things, or even work for slab credit. They need only ask the community.
A few thoughts came to mind on this...
I’ve lobbied successfully for at least one registry addition: the blacked out price variant of JIM #76. Others weren’t so successful. Obviously adding ~300 of these to the registry would require a serious overhaul. Such an overhaul might seriously irritate other collectors who don’t care about these variants, but would now feel compelled to seek them out. Of course, this would also go a long way towards publicizing them to a broader section of the collecting community.
As for the software, they sure didn’t mind overhauling the boards (basically against the wishes of ALL of its users) and successfully migrated a ton of data over here. It could be done for the registry, if and when it becomes too expensive to maintain whatever legacy system they’re still running.