The virtual machine significantly slowed "Cornerstone"s execution speed, however. Businesses were moving "en masse" to the IBM PC platform by that time, so portability was no longer a significant differentiator. Infocom had sunk much of the money from games sales into "Cornerstone"; this, in addition to a slump in computer game sales, left the company in a very precarious financial position. By the time Infocom removed the copy-protection and reduced the price to less than $100, it was too late, and the market had moved on to other database solutions.