I ordered a piece of machinery "in stock for next day delivery", my credit card was charged and I was emailed 5 days later that my item is expected to ship in about 3 months (a date was given). I mainly share this because CPO is a major 3rd party seller at Amazon.com.
I was told, they "have trouble keeping their web site up-to-date". This is evidently the truth because after a week, the item is still listed as in stock at Amazon and on their site. I ordered a digital keyboard on line once and had to maintain the same sort of patience.
In any event, be cautious who you order from if you are in a hurry. I'm saving a few bucks, and the wait is not a meaningful inconvenience in my situation--but it could have been.
Bill