I can see getting one or possibly two out of concern that the troop may be buffed, but getting 6-7 or 16-17 for legend or mythical just seems insane to me even with the resources at hand.
I have over 6,000 glory, but I’m not even bothering with getting one of this most recent troop. With the new sacrifice system, anything not level 20 mythical with all 3 abilities in late game likely won’t be worth using.
Having 2 epic event troops as mythical from the immediacy of an event costs 2,380 glory. That is the equivalence of 119 glory keys, which is similar to 60 iron keys.
Given how essential getting runes will be early in the 1.0.8 patch, I don’t see any reason to spend glory on weekly troops; unless of course a really strong unit or a legend rolls around in an event. This would mostly just be applicable for the next month or so, for by then most higher leveled players will have a sufficient amount of runes and mythical legends.