But even if they were free, since they're made with a 55nm fabrication process you would need access to stupidly cheap electricity to be able to make very little profit. At which point it would worth it much more if you'd invest in more powerful cards or even ASICs. And there's only so much cards you can stick in a system so you'd end up basically wasting money on the rest of the components.
They basically require a lot of electricity to do very little work.
But hey, since they're cheap you can try and play around with one.
The m1060 card might not mine all the algorithms since it is an old compute 1.3 engine. I am experimenting with one for cryptonight mining.
The card only has drivers up to Windows 7 x64.
Good old CUDAminer might work for litecoin, which has gained price in the past few months to might make it worth your while.
Now the M2050, m2070,S2070, M2070 are interesting for the bang for the buck since the are compute 2.0 capable cards.
If you have low electricity costs, or free electricity from your lease, business you own, or renewable. Who cares? Mine on a 300-1.5 KH a card on monero.
The m0250 ($53 on ebay as of 2/2018), they have a compute 2.0 Fermi core and do mine cryptonight at 313-300 hash with windows 10x64 which has drivers from Nvidia with up to CUDA 9.1 programming support. Nicehash arbitrarily doesn't want to mine on any card less than compute 5.0.
However, there are third party miners like XMR-STAK which can be set to other pools, along with simple worker on Nicehash.
I have one cranking out hash for XMR, GRAFT, Intensecoin, and starting to test Ethereum.
Also the Tesla series of cards do have drivers for Linux, and can usually be installed in a VM like XEN for virtual video and 3D video support.
That means you can play video games on it from a regular desktop PC across the LAN, or cellphone/table like what Nvidia Shield does with the GeForce cards.
As a last resort, you can use a M2050 or later cards in Windows for Folding@home for disease research at Princeton. So far 50 major research papers have been spawn with clue on how to attack problems like Cancer, Alzheimers, Parkinsons, and metabolic diseases. Consider it a gift of charity and humanity if the card doesn't mine worth the costs of electricity. I know it works since I installed the 2/2018 version and it runs GROMACs on a compute 2.0 engine.
Have fun!