Dainese do a great job of controlling pricing internationally, there are times I pick it up cheaper due to fx fluctuations in the uk but ultimately it the same across the board.
Most places will offer you a 10% maybe 15% discount but good luck getting more the mark up on this product is not huge
If you are not too picky, I have found that CycleGear.com has been really good with prices on Dainese gear. I have personally bought from them and everything has always been as expected.
The only issue I have run into with them is that I haven't received notifications a few times that something was shipped out. Not a big deal if you are in the CONUS and it shows up at your door... It is a big deal when you have a box that pays to receive and daily hold fees for us non-CONUS clients (Canadian)
I've purchased Dainese products from Motorama - both at the actual store in Firenze, and online - and would not hesitate to do so again. Shipping was faster/cheaper than I expected, too.
Yeah, I've had a few friends here in the States order from them as well. Their email communication leaves a little to be desired, but the products always arrived promptly with no issues. I would definitely recommend them.
I too have ordered from Motorama. Fast shipping, good prices. Measure twice order once!!! I needed an exchange, after two months I told them to refund my money.