Definitely the latter, IMO. Posters like this don't have enough detail to matter if you're actually interested in the system. The volume of information is cool

Definitely the latter, IMO. Posters like this don't have enough detail to matter if you're actually interested in the system. The volume of information is cool and fun to look at, but it's not really that useful, other than as a 10,000-foot reference. And the number of times you need a 10,000-foot reference is low enough that a big poster isn't really that helpful. Giant periodic tables are actually a lot more useful, now that I think about it.