I waited 6 months for a custom horsehide from High Noon Holsters (CZ 75B model). 6 months was a long wait, but I have no complaints about the holster, it really is perfect.
I'm still waiting on my order from Blue Grass Holsters (HK P7 model). Ordered in Oct., so I'll probably still have to wait a few months. Very much looking forward to it though. I don't really have problems waiting (or paying) if it's quality work. If you think about it, you really only need to buy one quality holster for the life of each firearm.
Although, it is quite tempting to call and find out the status of an order, (I haven't done it yet as I know it only slows down production time), but dang I'm anxious