I do wish they'd increase the aid caps in game...
For me, a tech seller, the main reason I sell tech at 50/$3mil is the fact that I don't like to have my aid slots tied up with outgoing tech for two weeks with no income coming in. If the demand for tech was lower, I'd sell 50 tech for 1.5 mil. But it's not, so I won't get out of bed for less than $3mil.