Did I make a mistake?

That is very bad information you have given the OP.  And your bias is clearly showing.  I have all three lenses you mention and each has its benefits.  First of all, the 14-150mm is NOT an overly expensive, heavy lens.  Simply put, the 14-150mm is a very good lens (translation:  very good IQ), and worth the money, and easy to carry (by itself or on the camera).  In situations (and these do occur) when I have needed to travel light and have needed to react quickly to situations, the 14-150mm has been invaluable in giving me what I need in one lens for wide angle, or closeups, or whatever (rather than fumbling and switching lenses) - an excellent all-in-one lens.

The 14-150mm serves its purpose and does not deserve the pompous nonsense spouted by many of those on this forum.

caver3d