I'm not too thrilled about adding shop items that give an unfair advantage to rich players. Given the fact that Eternal Lands has a vast majority of underaged players, who do no have access to a credit card/paypal etc., they would be clearly disadvantaged (and i'm not talking just about PK here). The thing is, if a player has $ to spend, he will spend them, thus increasing inflation and unbalancing the economy. I am ok with cosmetics, maybe even stuff that gives you small experience bonus, like +3% or +5% exp for an hour/day/etc.
Perhaps make these 'glowing swords' drop from monsters, as a very rare drop, but balancing their stats, as well as the armor stats, is vital in creating a well balanced game
-just my 2cents