Hewlett-Packard Co., the world's largest computer maker, agreed to buy Autonomy Corp. for $10.3 billion in cash to increase sales of cloud services for businesses while lessening its reliance on personal computers. (David Paul Morris/BLOOMBERG)

The HP TouchPad has been available for months, but only in the last few days has it become the must-have tech product. It became must-have only after HP decided it must get rid of it. HP said it would discontinue the tablet. Seemingly to get rid of back stock, the price was reduced to $99.

And get rid of it, they did. Since prices dropped on Thursday, the product jumped off shelves. So much so that it’s now selling on eBay for prices between $250-$300.

The mad dash for tablets seems to have caught retailers by surprise, with not nearly enough stock to meet the demand. Best Buy discontinued sales on Monday, saying its stock was wiped out. It made an about-face the same day saying it would limit sales to one per customer. Now that offer is gone. Even the Hewlett Packard site is out of stock.

The great TouchPad run may be reaching the finish line.