I try to never speak for others, or try to influence their spending habits as it falls under the touchy subject heading of, "Other People's Money".
In the past couple of months I've bought more than a few high ticket items locally, but I refuse to feel compelled or shamed into wasting my money. Besides, for those who itemize on their taxes, they deduct sales tax over set ceiling anyway so it really does not matter past a certain point.
My thinking goes, if I have cash, would I buy an item with a credit card, just for the privilege of throwing away an extra 20% of my hard earned money? I don't think so. The same reasoning applies when I choose to bypass the middleman on less expensive items (that come from the same place anyway). Why? Because I can have it sent my house cheaper than the gas alone would be to drive to a store to pick one up at an inflated price... if they even had one in stock.
Speaking for myself only, every time I buy a cheap piece of dung from China without a warranty, I feel like I'm doing my bit to save the environment, and save money at the same time! It also saves me time for other things... it's a win-win-win!