SFE stock unpredictable

One day you see over a hundred atmega328 with bootloader, the it's out of stock for a few days and you've done waiting and place your order, then the day after you placed your order, it's back in stock with 860 item. WTF? I don't want to pay another $4.x S/H just for a chip!!

BTW, their UNO is out of stock but was hundreds in number days ago. Then their UNO in plastic package is available!

How unpredictable are their stocks? I was gonna buy a dozen of UNO for school and now I need to wait till when? :-[ >:(

Despite a vendor's best efforts, they usually can't control when other people place orders.

Got to admit, at least they're fast in shipping. I'll be getting my GPS this weekend. I'll pick up an ATMEGA328 early next year when it's stocked at digikey and then a mega clone on ebay, when I have more money.