Spell Speed...Not so fast!

[Tuldin]

I thought spell speed affects your global cooldown, which isn't necessarily related to your individual spell casts or recasts.

[Tercino]

People have done tests on spell speed and skill speed that show that they categorically are not worth it if you have to make a choice between it and almost anything else.

[Estellios]

I thought spell speed affects your global cooldown, which isn't necessarily related to your individual spell casts or recasts.

It effects Spell cast time and recast time (recast time being your GCD delay for normal spells, so essentially yes it effects your GCD).