I like the cap personally. It could end up like tech in... another game that a lot of us are familiar with. You used to not have to have a !@#$-ton of tech but nowadays you need a shit load. Then you have people who have so much tech that it's impossible to stop them. That could happen in this game, an alliance that has a ton of spies, and then they can just spy away other people who are trying to make more spies and hold a monopoly on spies.
I don't like how the spy range is going away. It's not fair that I can spy on a new nation, because they don't have enough money to afford spies.