The hard part about joint ventures is the actual work in convincing a potential JV partner about the merits of the venture. Counterfeiters may also tamper with branded products. For example, Intel processor chips vary in price based on their processing speed: the higher the speed, the higher the price of the chip. Counterfeiters buy (or steal) low-end chips, repaint a few numbers on them, and then sell them as high-end chips. The high-end chips sell for $100 or $200 more than the low-end chips. Customers looking for a bargain may unwittingly buy these chips. For Intel, these remarked business chips not only cannibalize sales of the higher-margin, high-performance chips, but they also create higher warranty costs because customers turn to Intel when these chips fail. The counterfeiting can also damage the brand’s reputation. To defeat counterfeiters, Intel implemented a long list of product-security measures. It replaced removable painted numbers with more-permanent, laser-etched numbers; developed retail packages with holograms and other hard-to-copy markings; and created software to detect any mismatch between the chip’s internal rating and operating speed.