Not on as short a cycle as just a few weeks, particularly if I’m setting aside money specifically for it. Though when it comes to music I always give it another spin before deciding to buy and sometimes that does make me change my mind on what to purchase.
Your overall question could apply to a good portion of my working life. I started out with fairly specific amounts of money I wanted saved and a laundry list of things I was going to purchase in between. Somewhere along the way most of those stopped being goals, often, so subtly I didn’t even realize it until I found I could afford them and hadn’t even given them a second thought. They dropped off for different reasons, mostly because priorities and interests change with time and the moment. Some of them I just plain forgot about until I was faced with them again. But in every case they were, for me, excellent examples of why it’s so important to enjoy the journey and not worry about the destination.
Particular to your example, I’d chalk it up to a passing interest rather than a genuine desireā¦ or just a woefully bad memory, you do remember who Jon is right? :) In any case, I keep a list for longer term interests. Of course then I forget the list and wind up with a dozen albums and a list no shorter than before my spree, but that’s its own issue.