Monk - Higher Tier Haste

[mefdinkins]

Haste is always a crucial part of gearing up your monk and the progression from the 21% haste Flowing Black Silk Sash to say a 41% haste item is something most monks dream about!

That being said, if a monk was to slowly upgrade and trade up they'd end up rocking 21%, 22%, 24%, 27%, 31%, 34%, 36%, 40%, and ultimately 41%. Unfortunately those haste increases also come at a significant cost, sometimes 20k or so more for a seemingly minor increase. So what do these differences really mean? Does increasing haste by 1% mean a 1% increase in damage?