I've added a "Coin per Balloon" column to my Price Lists. Check it out if you'd like to know the most cost-effective resource-to-balloon conversions.
EU-1 Newfoundland ... http://tso.majordesigns.ca/EU1/price_list.html
EU-2 Northisle ... http://tso.majordesigns.ca/EU2/price_list.html
EU-3 Sandycove ... http://tso.majordesigns.ca/EU3/price_list.html
US-1 Zeus ... http://tso.majordesigns.ca/US1/price_list.html
US-2 Ares ... http://tso.majordesigns.ca/US2/price_list.html
Happy Settling!
~Just_n