Be careful of certain replies to your 'want it now' postings.
Some people search through these postings and will then send you a message, '( usually from an anonymous ebayer), saying they have what you want, and offer to sell it outside of ebay. Always buy through ebay for your own protection.
While some may be genuine, some are scammers whom if you deal with, you may never see the item, as they did not have it in the first place. If they have the item, it should be listed with a photo, and their username should be seen, not anonymous.
I did this once, and did not receive the items, although I was re-imbursed by Paypal, now the same person is asking me what will I pay for the 'want it now' items I'm after.