I think that dragging and dropping is a fad, that WordPress used when it was popular, and is moving away from now that it is not.
This is like when Flash first came out, EVERYONE had a flash website with an intro screen. The fact is that the common user doesn’t ever think of clicking on something on a website and dragging it without being instructed to do so. The internet is so 2 dimensional that the idea of interfacing with it on an interactive touch-and-feel level is still a very immature one; one that in my old-school opinion I personally feel is unnecessary since the same can be accomplished with the mouse totally unplugged. ??
I wish that the widgets were smart or conditional; so that I could set equations and circumstances that must be met to show or not show specific widgets on certain pages. This would work similar to how the original sidebar.php file works, but within the admin panel rather than have me modify the file directly.
The idea behind a WordPress widget is to categorize commonly used functions of a website (calendar, search, links, pages, etc…) and provide a unified toolset packaged within WordPress to offer these functionalities without touching the code, which I think is great, but it starts to cross the line of dumbing it down just a tad too much…
What makes WordPress great is the ease at which the code can be modified to fit individual needs, and the widgets lose that ability if they are hard-coded into the interface itself.
/end opinion
…and back on topic; don’t expect for dragging and dropping to come back anytime soon. It was very much a sign of the times, using technology for the wrong purpose, similar to much of how AJAX is still used everywhere. ??