Are you refering to live plant bulbs like these:
I have not tried those, but I did try the ones from petco that have the "lily", Aponogeton and onion. Many did not sprout, however on the back of the package they say to send them any bulbs that don't sprout. I sent them back about 5 bulbs, they sent me about 17 mixed bulbs! I was more than happy with the purchase and would do it again, even if I start out buying dead bulbs, as they will be replaced several times over.