It's great for once to see everyone having an honest discussion over this particular topic without the thread eventually being locked.
I feel, when I see the lack of freeware for this particular sim, that we need to look at why (in most cases) dlc becomes payware. I can't deny that a lot more effort needs to go into routes and rolling stock with TS2013 than was necessary for MSTS. Community assets could be developed at the highest standard possible without the need for a 3d cab or detailed external models. In the case of MSTS I'd imagine so many assets could be made for free because most people with some basic modelling skills could produce something to a good standard. With TS2013 it's a mammoth job to get even a single high standard loco out to the users, asset development has become a niche service and it's just not viable for someone to sacrifice so much time in developing something for it to not reap any reward.
Now please don't get me wrong, I'm not saying that MSTS dlc is worthless (I myself bought most of MT's excellent routes and stock packs back in the day), but I would completely understand why a developer would choose to go payware, it's just the way the development community has gone these days on account of the demands placed by the user community.
I've probably caused myself more problems than I set out to resolve by saying that, but I'll be remaining partial to my opinions
Kev