From what I've witnessed, surplus guns are cheap while they're being imported by the boatload, then the price climbs as the supply dwindles away. Neither gun would be a bad investment, and will likely "earn more interest" than what you'll get from any sort of basic account in a bank (checking, savings, CD, etc).
Someone said that the T53s were covered in axle grease (instead of cosmoline) and that the rifles were wired together in bundles for storage. This seems accurate from what I've seen. The stocks on the ones I have are all Asian "Chu" wood, which is an odd, soft, stringy wood. The actions on the 5 T-53s I have are smooth, but I don't know if that's from manufacturing or from heavy use.
If the guns were the same price, and I could only have 1, I'd take the Russian. For the price difference, it's a bit tougher of a decision. "Get both" is an acceptable (and in this case, pretty affordable for most folk) answer. They'll take the same ammo and accessories, too.