I think it's somewhat similar to the "not invented here" syndrome, but more of a "not invented now" syndrome.
People (rightly or wrongly) believe the new technology is better suited to their problems.
People (rightly or wrongly) believe the new technology is better suited to their problems.
IMO I think that's at least part of the issue.
There's also the common notion that movement seems productive. If you are not moving, what are you doing? This effect happens on a lot of levels. Especially managers have to show they are moving needles. Any movement is better than no movement.