Let's hold our horses for a sec! Impulse buying like this might not take us very far... let's talk about it.
Just like some of you, I used to be a guy that looked for literally the most dirt cheap price on any item I could. There was even a time in high school when I bought a deep V neck T-shirt with Ed Hardy-like designs on it just because it was $4.
Good news is that I've changed. Not much, but at least enough to know that sometimes, it just might be wiser to buy clothing at slightly higher prices to ensure quality. The above picture can help illustrate my point. Just because an item is dirt cheap, does not mean that it's immediately worth buying. Especially on classic pieces like a pair of wool dress pants, you want to make sure you get a pair that won't rip on you midway through your hot Thursday night date.
Forget the fact that these pants are a cheap wool blend, unknown brand name, pleated, and classic baggy fit. The main point is that you have very little proxy for discerning quality on this item, and this can happen often when buying clothing, especially online. The only thing you know for sure is that it's cheap. A little too cheap to probably be any good.
Before you can really start discerning quality, you need to own or at least feel out quality pieces first. Check my post on quality; it might give you some tips on how to determine what's quality and what's not. Hopefully after you've been armed with some knowledge & experience, you will realize it's better to put weight on quality over quantity with regards to clothing. My spidey senses tell me that the pants above probably aren't very high in quality, and will likely just give me a higher quantity of pants, but hey, what do I know? Either way, I'll skip the risk.
Anyhow, moral of the story? Do some research ahead of time and get your ducks in order before impulsively pulling the trigger on sale items. Just because something's cheap doesn't mean it's worth buying. You'll probably have regrets and end up spending more in the long run anyway.