RAM: Over the years I have watched as server RAM prices have gone down. However, when I recently priced out a virtualization server with 192GB RAM and the RAM was half the price from 9 months ago, I thought WOW! My purchase power to implement virtualization has increased dramatically! With 2-socket servers with 192GB RAM, there is more compute power than most companies really need for most tasks in total; virtualization of some kind is required for most enterprises to make use of the hardware on the market.
There is no better time than the present thus far to implement virtualization.