Originally Posted by xethik
It increases your critical strike chance and you can resell them. Avarice Blades are a very good investment for a character like Tryndamere who needs a lot of gold to shine.
Yes and no.
Critical strike is very good on him, so averace blades are always going to be at least decent. But for about the same price as an averace blade you can get a cloak of agility which gives 6% more critical strike, and is part of an item you plan to upgrade to (IE and phantom dancer) You can't upgrade the averace blades at all.
Getting any of the gold per 5 sec items is generally trading off your early/mid game to help get to late game. Tryndamere already has problems early game, so nerfing his early game by purchasing items that are less gold efficient can be very bad on him.
Eventually those blades will make you some money, but you will be doing less damage (and creaping and killing less) until that happens. Avarice blades costs 750 and will pay for itself in 25 minutes. When you sell it you lose half the gold you paid for it, so you need to keep it for at least 12.5 minutes to break even on selling it. Keep in mind that during these 12.5 minutes you are doing less damage than you would if you had bought an Agility cloak, and therefore you are getting on average less gold from creeping and hero kills.
Also if you get the agility cloaks instead of the averace blades you are already one item closer to your phantom dancer or IE. An avarice blade takes 30 minutes to get you 880 gold closer to a phantom dancer, but an agility cloak does it instantly (cause its part of the recipe)