No, it really doesn't unless you need cards that bad. Most people have commons/uncommons so I can't see adding them, it's usually about the rares. Unless it's some pricey uncommon you can get it for like $.20. It literally comes down to the rares and if you need them. It goes by the person, whether it's "worth" more if you add in all the 5 cent commons or not, if you just need say and ash zealot, then it's not worth buying the event deck just for that.
Edit: To your edit, most of those are cheap cheap cards. Yeva is a $.50 card and Geists is $1, that's not hitting $25 with the rares. The most pricey is Thrag which is $15 but might even drop slightly due to the event decks. Unless you need thragtusk then there's no point in that deck. It having 4x farseek has not monetary value, even if it is a good card.