I find that collecting is the most expensive habit I have. I literally cannot afford anything other than my preorders at the moment, and I must say, it is depressing me ever so slightly.
I have preordered pretty much every game that is due to come out in the upcoming months, as I am looking forward to most of those releases, as is my boyfriend, so we have both preordered between us.
Having an addiction to CE's is hard, especially with so many good games coming soon, I've had to cancel some preorders in favour of others, and cancel some because I simply cannot afford it.
It's a great addiction, and extrememly fun, but it's up to you to decide if you want to do it or not
And I agree completely with Twisted about having rules, I only buy for Xbox360, unless it's a PS3 exclusive/variant.
But then again, I also collect movie CE's, so it certainly is an expensive habit xx