I tend to get a little crazy when it comes to army building. It's HIGHLY addictive and not to be taken lightly. Especially with the 25th since they can be bought locally. I think Techno Viper and Strato are the only Builders I have that I've only got 1 of.
For scenes I try not to clutter the shot with endless masses, but at the same time like to show Cobra as having a huge army. So it's a 50/50 swap for me.