It looks like NCIX may have had a run on the PA120.3s. I have to admit, I placed my order before I posted the notice to this board
. Mine shipped on Monday. But NCIX web pages provide excellent stock status info you can check prior to placing an order.
I don't know how much paying for expedited handling will help you if they don't have it in stock. You could probably find one in stock elsewhere at the usual $135 price. You have to decide whether you want to pay almost double to have it now or wait a possible two months.
I'd leave my order in place for at least a week or so, while I kept checking price/availability at other sites. Maybe someone else will drop prices, too. You can always cancel the NCIX order if you order from somewhere else.