Changes:
Manhattan sells Vacationers, buys Tourists
New Berlin sells Tourists, buys passengers_br
New Tokyo sells passengers_br, buys Passengers
New London sells Passengers, buys Vacationers
Vacationers removed from:
Stuttgart, Holstein, Houston, Pittsburgh, Los Angeles,, New Tokyo, New London and Cambridge.
I'm trading quantity for quality here but it comes at a cost, the inbound connections to the planets must be different to the other bases otherwise they'll just become a lesser version. Let me know what you guys think.
Addendum: Could potentially connect VIP's to London, Passengers to Berlin, passengers_ku to Manhattan and passengers_rh to New Tokyo.