[DaiPlusPlus]

A wireframe or click-through demo that pleases the client is not necessarily the best UI. (And the Best Customers are self-aware enough to know the Customer is not Always Right). Clients would gravitate towards that whichever impresses them personally - often by prior efforts made by competitors - but what looks snazzy and impressive often makes for a poor UX - consider the flashy CIA/FBI/LCARS UIs made for television and Hollywood, for example.

A resource like this is useful for when we, or UI designers we work with, are confronted by clients who want something flashy but impractical.