I may be one of the very few who don't mind the "I don't get any recognition" part of being a support. I wholeheartedly play the role to simply help my teammates get through the game as safe as possible. I don't much mind the lack of a returning favor, so long as my team is not flaming me for something. The way I see it, if my team isn't flaming me, then I'm doing my job correctly.
I can agree that the support role needs better itemization, but I don't believe the reason for it is because they get no recognition. I believe the reason why they need more [better] options for itemization is because support champions currently HAVE to build a specific way to be viable.
For example, Tank supports like Leona and Taric have to build tanky to be able to do their job. However, by building tanky, they lose out on CDR. (For the most part.) They can't build Sunfire Cape because it doesn't give CDR. They can't build Banshee's Veil because it doesn't give CDR. And if the enemy adc doesn't build a crit-style build (despite the fact that non-crit builds aren't that strong anymore) then tank supports can't build, or more shouldn't build Randuin's Omen because it doesn't give CDR. They'd have to build Frozen Heart. But if I remember correctly, Frozen Heart's armor stat works better if you have some extra HP to go with it, so you'd require some form of extra HP built. Randuin's basically does the same as Frozen Heart, but gives less armor, no CDR and requires you to be hit to get the attack-speed slow debuff.
For another example, cleric supports like Soraka and Janna have to build CDR and a little AP to be able to do their job. (Although, Janna is still good at doing her job, even without CDR, but this is just me speaking in general.) However, by building CDR and AP, they lose out on beefier tank stats. Sure, Mikaels, Locket and Athene's give CDR, Mag Res and AP (Athene's), the Mag Res you get from them isn't much. And, for the most part, you really won't be around the enemy team's mage too often for Mag Res to be a big necessity. That leaves armor items as your main tank stat to prioritize (after HP, that is), and this leads me back to the tank situation above.
I honestly feel like tank items should give CDR. Even if they were to simply tweak the tank items to be less abusable by non-support champions (i.e. those not playing in the support role; meaning that the item would be viable on support Malphite who isn't getting solo-lane gold like top-lane Malphite would get).