Re: How much money do you spend on whisky each month?
To balance the posts above: I spend on average around $30/month. Some months I buy nothing. When I do buy a bottle, it's typically in the $25-$40 range. (Think Tamdhu, McClelland's, Bowmore Legend, Ardmore TC, Knappogue Castle, Connemara, etc.)
For me, "the good stuff" (anything over $45) is a splurge that I save to mark special occasions. Examples from the past year:
Got a raise = Springbank 100 Proof
Got a bonus = Talisker DE
My birthday (gift) = Kilkerran WIP
Father's Day (gift) = Laphroaig QC
As much as I have to forego the many delicious bottles I leave on the shelves, I like this system. In addition to controlling costs, it helps "the good stuff" stay special. And I like having each good bottle mentally attached to some positive event as I nurse it down over the course of a year+.
EDIT to add: I don't think I've ever spent more than $60 on a bottle*. There's a lot of tempting, not-too-unreasonable stuff in the $60-$90 range, but it's hard to justify the expense when there's totally good stuff in the $40-$50-$60 range that I haven't had yet. Give me a few years and maybe I'll have moved up a level to find new thrills.
*Possible exceptions: Smaller (20cl, 40cl?) bottles that I brought back from Scotland to the US. In an ill-advised moment of back-o-the-napkin figurin', I calculated these were the equivalent of like $100 bottles or something if you converted for both bottle size and the currency exchange rate. Lesson: Never do the math!