I think we can assume a lot one thing I learned over the years when it comes to businesses either we trust how they treat their content or not.
I tend to trust KC seeing how they handeled stuff over the years.
A HUD as Kendrah suggested would be a cool solution I think.
What I've learned myself is to not talk figures when it comes to doing business in SL.
Perhaps that is also a cultural thing we in The Netherlands don't speak about what goes around in our business because yes,.. that's our business
EDIT Not dealing with MP while maintaining sim(s) as well can also be a principal matter by the way.
To me it is not so much the percentage LL wants over the purchases but it does completely make no sense especially not if we pay fees for sim(s) as well and work our *ss off to make that known and work out.
The times I use MP it is a true pain in the butt also; slow, many things do not arrive in inventory, money is taken but nothing in return and so on and so forth.