Although your video card is old enough, I think it can be used to mine some altcoins, the Equihash algorithm , you can also use your CPU to mine cryptonight algorithms. Although it will not be profitable, you can exchange this altcoin to bitcoin and save it. Maybe the price of bitcoin will rise a lot in the coming years. In the bitcoin world the possibilities are endless, you just have to have good imagination.
There are some altcoins that are okay to mine with a CPU. You could mine some altcoins like Riecoin which are CPU-only and have moderately stable price.