Let's see now...."...since the 60's...".
I seem to recall a period from 1787 until "..the 60's.." when such was NOT done. It's bribery...calling it an investment doesn't make it not a bribe.
It puts the states in competition with one another in exactly the same way that interstate tariffs would, and is precisely the reason for the "...commerce clause..." of the US Constitution.
Ah, so YOU want to regulate what states can or can’t do. OK, let’s level the playing field and do away with all taxes altogether. Then we don’t have to worry about corporate bribes. We also don’t have to worry about taxpayer supported education, taxpayer supported politicians, taxpayer supported infrastructure. Hey, you are right. Let’s get rid of all these opportunities for “bribes”