@Captain-Mitchell:
(…) In the classic rule,Tech. development is so meaningless,you can build a huge army with IPCs that  for Tech. development,but the effect of Tech. usually not as good as a strong troop.
Exactly what I was thinking.
@cyanight:
I almost always roll on tech for Germany on the turn I plan to attack Moscow to increase the amount of units surviving the battle. I usually roll (1-2) dice and roll on the Land chart so I can try to get Adv Mech or Adv Artillery. Both of those are going to increase your odds much better than Heavy Bombers. Â All those mech paired with tanks get an increase in power or twice the mech you have paired with an artillery. That’s a huge swing in power compared to the bonus you get for Heavy Bombers. Â
On a side note I performed a Sealion with Germany last night. Â Rolled 1 dice on tech before the battle and got Jet power. Â This time I rolled on the Air chart because I had no mech and only one artillery in the battle. Â It definitely helped me take London with less losses. I could have rolled on the Land and hoped for Paratroopers. I could have sent 4 more inf over to take as AA casualties.
I like this way of thinking!
Personally I never research because I think to myself that all the money required to get to a useful tech can be more effective to you when used to build more units…
…But if used the way you do, it could mean the deathblow to your opponent! Of course, if you don’t get lucky on the techroll, you are screwed big time for falling behind in number of units but I like the ‘all or nothing at all’ approach if the game can otherwise be expected to end in a loss. GE7, Germany should be able to tell if the Axis cause is most likely doomed and pressing the ‘all or nothing’ button might save your German *** for a change :-).
I just calculated the German increase in Power if it hits ‘Advanced Artillery’ GE7 (and ‘Advanced Mech’ does about the same). It could turn a close call at the gates of Moscow into a win for Germany, but it’s not as spectacular as expected. In the example I used in my BC (usual German power against usual Russian power), Moscow went down from winning the battle with 21 survivors to winning it with ‘just’ 13…
I’d say use the gambit if the power increase means absolute victory for you instead of a loss, but otherwise I fear Tech will remain far less cost effective than buying units. Which is sad. I usually love to tech up in strategy games ;-).