Some of the other games have certain discount times I've noticed. Some only last an hour on say Sunday, others do a one day thing. They make a special opening page to let you know that it's happening, but they don't tell you when it will be, that way you have to log in to check.

I thought something like this might be a good idea for you to generate interest and maybe pull in some people who wouldn't normally buy GP's.

And one other thing,
*coughenergycanisterscough*

Thanks.

*cough+infinitycough*

Just got some Silithion sacs, 3 uses 100 energy a pop lol! pretty cool I guess that works.