I have a couple of rolls of these - they just haven't been sent to PCGS to enrich them further. Hard sells above a few dollars.
Guides are good for liberal benchmarking but you should really check recently closed auction prices to get a gauge on market value. I use eBay sold searches to get an idea for what something will sell for.
Exactly, closed sold lots only. Just because someone is selling something for a certain price doesn't mean it is worth that.