Whereas for me, when I get a book, it goes into calibre, gets the metadata updated including the cover image. OTOH, I do not use any tags other than a custom his/her column. The other metadata I keep are series, publisher, published and subtitle. I also have custom page/word count and Kobo reading progress/status columns. The only custom collection I have is called Finished where books are moved when I finish reading on my Kobo.
I really don't care where I purchased the book nor the price (given the number of books I go through in a year, not something I want to be reminded about). I want to read the books on my ereader not sit there going through calibre and asking myself why the bleep did I spend $14.99 Cdn on that PoC.
I do regularly update calibre and since I run from source, that means I often update when Kovid Goyal posts one of his "Fixed by:
https://github.com/kovidgoyal/calibr...39962ad608b6ca" messages.