TrueFire has a couple of different plans: All Access, where you pay a monthly or yearly fee to stream almost all the content, but can't download it to keep, and their free plan, where you purchase and download individual lessons as desired.

You can purchase and download any of the 92 next generation Song Lessons if you want. They don't currently have a deal on buying all of them, so you'd have to buy them individually. You can also purchase and download any of the "Song Packs", and you can purchase and download the "Play Like Van Halen" course that has the 5 Van Halen songs. TrueFire runs constant sales on all its content, so the prices vary a lot. FWIW, I believe the last song bundle deal where you could buy/download them all for a good price was last December, so who knows, maybe they'll run a similar deal next month.

The other 385 older song lessons that were brought over from JamPlay are streaming only for All Access students, and cannot be purchased/downloaded.