It is actually the archiving that is the main benefit of Pinboard. Then tagging and commenting the links for yourself, in order make it easier for you to find it later. The goal is to keep there more than what you'd bookmark. The bookmark is for me "I expect I'll be visiting this often." The link in Pinboard is "my archive of the stuff I've once read on the web that I can need later to refer to, in the state it was as I've read it." That includes the content as it was at the time I've read it, not just the link. And I want to be able to comment it for myself and tag it to easily find it later. If you just need the bookmarks, use the bookmarks.
I try to like Evernote, especially because I read a lot of PDF papers and annotated screen shots are nice, but I have 3000+ Pinboard bookmarks because they are just much, much easier and faster to create than Evernote notes.
I didn't understand what the fuss was about with Delicious and (later) Pinboard, and didn't start using Pinboard in earnest until a year or so ago, but now that I've got archiving running and full-text search, I have no idea what I would ever do without Pinboard.
Thanks. I use the Evernote "clipper" extension in my browsers, which lets me save either the URL, the article content, or the full web page to Evernote. I can tag them, and edit the text to include additional info (one frequent addition--a link to the HN discussion of that article).
I'm sort of in similar shoes in that I've been doing this for a while, so I've got hundreds of saved pages and dozens of tags in Evernote. So I feel like Pinboard would need to be much better to overcome that inertia.
I've never used Evernote but from their web site, it's a quite different service, Evernote is more like kind-of Google docs than what the Pinboard is (the "social bookmarking for the introverts" with the automatic archiving of the content behind the links).
Evernote premium is 5 EUR per month, that makes 60 EUR per year, v.s. cca 20 EUR per year for Pinboard Archive.
And Pinboard is much more minimalistic, and I like that: it doesn't force me to "install the apps" or whatever. I add the bookmarklet and I visit the Pinboard site, that's enough for all the devices I have.