As i feel One should switch from PSD to HTML 5 because it is striking and presentable web portals are the basic requirement of all web business.Every business needs to have an attractive and unique website to improve their business. This provides faster downloads, good browser and compatibility clear visibility, these elements help business to reach their customer with no trouble.

HTML5 is better than PSD as it supports a lot of new features, it also loads faster than PSD in browser.
So, thumbs up for HTML5.

Because HTML5 have good feature as compared to PSD.

Because HTML5 has lot of features which are really helpful for faster performance and better user visibility.

HTML refers to Hyper text Markup Language. HTML5 provides more features as compared to the PSD. So I suggest to switch to the HTML5.

HTML5 has more features than PSD, also its light weighted so don't take too much time to load.

HTML5 is the latest version of HTML so it is always better to use latest version because it is upgraded with latest functionality and compatibility. There is a new trend to make Responsive websites as many users are using their portable devices to open websites. So HTML5 is used in Responsive website. So it is good to switch to PSD to HTM5.

I think its quite fast and easier to get develop the website using HTML5. It includes a lot of features in it. HTML5 quite sounds good in the web application development.