Studio Outtakes - Why?

I wonder why - ok, that's not a Berry tune.
But I really wonder why someone creates and offers a CD such as "Chuck Berry - Chess Studio Outtakes" (no label, no number, no date).
A reader recently found this CD in an online catalogue and asked me if I knew anything about this release. Well, I know very little but what I know is more than enough.
The CD contains 29 tracks, all of them alternative takes originally not selected for publication. It comes with a nice, professionally looking cover and label, though after closer inspection it looks pretty home-made.
All of the tracks are very well known. In fact all of the tracks are just copies of the same tracks as published on the 4-CD set "Johnny B. Goode (HIP-O-Select B0009473-02)" in 2008.
So why would you want to but this CD if you can get the same contents plus additional three CDs full of Berry and additional studio outtakes and a great booklet and great packaging for around $100 (current retail price for the complete set)? Even if you do not care whether musicians or legal record companies receive income from your payment. (You should - as if you don't who's going to create the next album with really interesting stuff?)
Thus leave this bootleg in the shelves. If you don't have the outtakes already, run and get one of the few copies of the 4-CD set left (e.g. by clicking here).