Oh dear god don't even joke about that, IE5/6 omg the horror, don't bring back memories! From someone whos done web development your gonna give me nightmares! As for vanig though, your definitely right, industries like retail tend to get into their groove until something shakes them up, the last time that happened was the internet bringing us amazon, it shook up brick and mortars like no ones business, it will be interesting to see if blockchain based distributed networks can shake up the market of the online retailers like amazon did to the brick and mortar.