Yep, and very well put again, Randy.
I think there are multiple reasons as well. One of them I think is their carnality has not been brought under enough. Sad to say, but I think the flesh reigns more than it should, and there are many who simply couldn't be trusted with greater gifts cuz they would stick out the hand and say, "Thus saith the Lord, Pay the man of God." This happened during the great healing revival of the 1950s. One by one they kept falling into sin, and several of their lives ended miserably because they forgot to walk in humility. We get to thinking WE are someone great now just because we can heal the sick or prophesy or even raise the dead, when in we are not the ones doing anything. We have simply been chosen by God to manifest His Power.
I think that may be the biggest problem although there are others. But it has also been prophesied (and this is widely known of course) that are living in the Laodicean Church Age, and that church believed they were "rich" and were in need of nothing, when in reality they were wretched and blind spiritually, and so materialistic that they couldn't even see it.
Thanks again for the post.