Sure, buy that new tv before the price goes up because it isn’t like you don’t already have three perfectly good tvs. That new tv might have bought a few more weeks of electricity to heat the house and cook meals. Most of the furniture in my house is 100 years old. It’s stood up this long, it should last through the next crisis. If not, I’d rather sit on the floor than not feed the kids.
As far as purchasing those big-ticket items goes, the thinking could be that they'll be worth more in the future than rubles will be.