Well, yeah, it wouldn't be free but it would at least be cheaper. You'd have to pay to have the CD:s printed anyway. Again, I'm not saying it's the coolest thing in the world and something I want to do, but it's nice to see a big company like Sony releasing their retired hardware to the public instead of just leaving it as-is.
The thing is, they're not actually releasing to the public. Instead they just drop the gatekeeping process. You still need devkits and you still need to make special disks. And lets not forget the distribution and -of course- promotion costs for a game. Most of these are outside the range of an indie developer, unless some sort of company is made which does this work for smaller studios. In this case however, you get your gatekeeper back (since a company wouldn't go through all that effort just to sell one disk - printing disks is only profitable when done in masses - so they will filter the games). The only difference is who keeps the gates now :-)