So here’s my point.
Many players would consider the conquest of Greece with no opposition to be an obvious move, and it was indeed a good move.
But there were some high costs to the Allies in picking up those IPCs and taking away Axis IPCs
#1 The US transport is destroyed, and the threat of those 2 ground units to all areas is immediately ended.
#2 The income gained by the USA can’t be spent until the next round. And then that unit takes another turn to move out. Axis gets immediate relief, and won’t suffer consequences for a couple more rounds
So the invasion of Greece was definitely the best choice out of the 4 transports, especially if 2 or 3 of those had been saved to maintain a threat of USA landing followed up by UK landing which could include planes.
So I’m not saying the invasion of Greece was a mistake, I’m just using it as an example of the “positional value” of units. The transport, infantry and artillery were on the “front lines” projecting threat from Norway to TransJordan, and when they were landed on Greece, they did generate several IPC’s of income for USA and took away from the Axis, but the delay of those IPC’s being earned, spent, and those units deployed where they are needed, is often not considered.
Agh, I need to go to bed, and this was not the best explanation I’ve ever given, but you know what I’m saying.