Patience. Sometimes, you just have to have it when you're searching for a particular item secondhand. You can be an incredibly determined individual and still have a lot of trouble tracking down something specific through auctions, flea markets, garage sales and thrift stores. Occasionally, though, especially at auctions where you must make snap decisions, you'll come across an item you've been looking for that's priced differently than you'd expected to pay. Here are some of the key points on waiting vs. buying right away.
Waiting makes the eventual find and purchase more special. If you don't jump on the first overpriced opportunity you find to round out your collection of model cars, you will get to engage in the hunt, and that process can be fun and rewarding when you finally do stumble upon a great deal and take the item home with you. Waiting until an item is more in your price range also forces you to evaluate whether or not you really want the item, making it more treasured when you do buy it because you know you want it around.
Buying saves you time and energy. Spend several weekends in a row looking for one thing, and you'll realize that time and energy are resources just as much as money is. If you buy now, you can put your future weekends towards other projects: finally fixing the garage door, attending a meeting of fellow collectors, spending time with your spouse and children. If the money you expected to spend is unreasonable, buying now can be the way to overcome your tightwadness and move on.
Waiting takes time. As mentioned above, buying saves you time, and waiting takes it. If you're hoping to do something with the item you're trying to hunt down -- display the entire collection at your local library for the new year, or put it to use on projects you had neglected due to lack of proper equipment -- then you may not have the time to waste on waiting to find another, more reasonably priced version. Take that into consideration when you are pondering whether to wait or buy.
Buying now will (almost) inevitably enact Murphy's law. Murphy's law isn't a real concept, but it's essentially the idea that anything that can go wrong, will go wrong. It's not guaranteed to happen, but it seems that many people who go ahead and pay the higher price will stumble across something more reasonable the next day. If you're truly afraid of this happening, auctions and bidding may not be for you in the first place!
Check out garage sales as another option for finding the items you need!