I think he means that it probably cost $8000 years ago when she bought it. That doesn't matter now because its value is far less.

Sinar made a shutter for the camera so the "DB mounted" shutterless lenses could be used. This costs about $500 used and the lenses are sometimes less expensive to buy because they do not have a shutter. The lenses pictures are already mounted in Copal shutters and will be fine for your use - most people prefer the standard Copal shutters as they are - but the Sinar shutter is nice to have as well. You can always add one later if you decide that you need it.

As for the accessories being boring, I suppose they are but they are also very useful! Perhaps he means that the accessories do not have a high resale value, and that is true, but you probably will use them regardless.