Here’s a post about it:
MAGIX’s pricing makes little sense. As at one time they “owned” SpectraLayers, there’s probably some contractual agreement allowing them to continue bundling SpectraLayers. Getting SpectraLayers Pro 11 via one of their fire sales should be seen as good luck.
If MAGIX were to handle SpectraLayers licenses the same way they handle licenses for the former Sonic Foundry products, you would probably have gotten a serial number for version 4 or something. Being able to get a DAC and use it through Steinberg means you always get the current version, which in this case is a fantastic deal.
FWIW I recently got Vegas Edit 21 via Humble Bundle for a charitable donation of US $30. This is a product that MAGIX has at times claimed to cost $700. I just doubt I’ll be able to activate it on a new commputer in a few years time, whereas I don’t worry about that with SpectraLayers (Steinberg).