The standard price established for Samsung Galaxy S4 is $250 with a contract for a period of at least two years, remains to be seen when the phone will be delivered to buyers, probably no earlier than 1st May.
However, Samsung has given a lesson to Apple, considering that the launch on March 14th has proven that Samsung can improve so much the hardware part of the smartphone's in just a few months after the launch of the Samsung Galaxy S3.
I anticipate that for at least two weeks ( between 16th April - May 1st) the preorders for Samsung Galaxy S4 will mean more than 10 million preoders for this amazing phone, considering that only Samsung Galaxy S3 sold, immediately after his launch, just a few months ago, more than 9 million units.
On this blog you can find all the details about preorders favorable for S4 fans.