I just collect and keep my bonus points for the eventuality that there's a module release I'm not interested enough to buy during pre-sale. Don't know about you guys, but I guess I won't be getting the Christen Eagle right away. But if I can have it for 10$ during a 70% bonus event, the collector in me will probably win. :D
Again, win - win. I get a new shiney thing in my hangar and the dev get a little bit of money, which is better than no money.
Waiting and keeping bonus points for the future costs me nothing. I get them for free and they stay on my account as long as I buy something once a year so they don't expire. And let's be honest, that's not all that hard in DCS. :thumbup: