I haven't bought anything from either Seasonsindia or Khaasboutique... I mean, there are a couple of nice outfits on Seasonsindia but the prices are a little too high. I am not willing to spend quite as much money on something that I haven't seen in person.
My budget for online shopping is about $500... and I don't intend of ever changing that.
Plus, I like Pakistani designs much better than Indian ones... so if I were to make any online purchases I'd be sure to buy things with a Pakistani feel/touch/look to them. [Just a personal preference.]