Here's something I quickly thought of.

What if we added an option in the Monkey Business shop to purchase goods in bulk using GB at a certain price? Like 1000SB worth of goods and then the option appears? Or we could have a split payment (1GB and some SB change) option if it's a little over but not quite to the next 1000?

The problem I've been experiencing recently is that earning SB is a slow and quite trying process. Not everyone has the time or knowhow to really grind for it, and now that there are lots of GB floating around it would be much more convenient to bulk buy any MB items without having to scrounge up SB. (Especially if you need a loooottt of Hyena Butter or need to Reroll your lion a bunch.)