Is there a big difference having lvl 25 strat towers compared to 24.
Level 25 strat tower
Or an improvement of just over 4% depending on how you want to do your maths. 12%-12.5%
Times 3 if you have them all and upgrade them all.
I always look at the top players construction when a new level is introduced. The top strategy players usually will upgrade their 3 strats right away or 2 strats and the training grounds. The fanboy guilds go straight to the stadium upgrade. So the real thing is to find a group of people who play the way you want to play and watch what they do. I will never let my strat buildings or training grounds go neglected
Some with deep pockets just do them all instantly with gold balls. Just imagine what you could do with the massive competition prize if someone finally wins it.