I don't really care about the 280 weapon, since after looking into the new Diadem, it doesn't seem any more interesting than the first version of it, so I won't even bother stepping into it.
However, FFXIV has a HUGE problem with making gear feel relevant for any period of time. Every patch that includes new tomes (and sometimes other patches as well) is pretty much a gear reset. Anything older than the current best tomes is made irrelevant other than maybe lvling gear. And there's really never any sence of progression either, since you'll be doing the exact same things for your new tome gear as for your older ones (except, new expert... yay). The only place were you could get a feel of progress is maybe in the savage raids? And even there, the patches more or less reset the progression every time a new part of the raid is released. A5S could just as well be A1S as far as gear-progression is concerned, since you need nothing from the first 4 to start it, just getting tomes is enough.
This makes the gear feel rather underwhelming and pointless in my opinion, and I think that they could just as well remove all stats from them and just have everything be glamour. That is after all pretty much the only thing they'd be useful as after a couple of months from getting them.
