I personally prefer the "slow walk" of UI improvements instead of a full-blown UI redesign. Examples are eBay, Paypal, and (in a way) Amazon. eBay and Paypal ar

I personally prefer the "slow walk" of UI improvements instead of a full-blown UI redesign. Examples are eBay, Paypal, and (in a way) Amazon. eBay and Paypal are both stuck in a half-design stage, where 50% of the pages are designed and 50% of the very functional pages have been redesigned but not rolled out... in perpetual beta, because the redesign cannot accompany all the features of the old. Amazon very slowly rolls out new button designs and side-menus, probably whenever Bezos is sleeping. But some of the buttons in the rarely-used sections of their site are still using the old familiar yellow JPGs.