I bought Space Rangers Bundle (Space Rangers 1 & 2) by mistake, I've wanted Space Rangers 2 Complete. I emailed Stardock's support for a possible refund/swap to Space Rangers 2 Complete and got replied that that wasn't possible. I ended up buying Space Rangers 2: Reboot separately, then found out that I've missed a sale where Space Rangers 2 was USD$4.
Therefore, I've ended up paying much more than I would have needed to for what I wanted. Not a very economically sound holiday game purchase for me. This episode definitely soured my willingness to spend any more on games in the near future.
To make things worse, I figured that I wouldn't want to miss any more potential great deals and turned Impulse Now on to catch any limited time special sales. Dragon Age Origins for 25% off caught my attention and when I tried to buy it, I realised it's only for North America.
Just my dumb luck. 
/rant