Symantec have end of lifed many good products, and I am sure it was nothing more than a financial decision. The cost of developing and maintaining the products is weighed against the annual revenues from that product and if the revenues are less than the development/maintenance costs then the product gets canned.
Many products canned by Symantec were originally produced by companies they acquired, and the Symantec policy seems to have been to extract as much revenue as possible out of each product line and then can it. Staff that did the original development inevitably moved on to other employers and skills were lost, leading to new releases having more bugs than the older versions, and thus to user unhappiness.
It will be interesting to see whether Broadcomm bring a different dynamic to the table but at the end of the day there are shareholders to satisfy and profit levels to be achieved.
There is of course a free imaging tool (ImageX), much like Ghost, included in the free Microsoft WinPE download.
WinPE gets updated every six months in line with the major updates of Win 10, so for a free tool, is well maintained and in my experience, has worked very well.