Because i swear to god you yourself said you only care about stills..
Maybe times have changed and you now care a bit more about video but what video?
What resoution? What are you filming?
Are you producing mini film snippets with actors and actresses? Are you vlogging yourself on daily stuff? Are you filming reportage work?
Are you filming for the press?
All of these things need to be asked so you can assest what tool is right for you.
I now assume that posisbly the A73 did not have the video tools you needed at the time?
Perhaps youre thinking of someone else, I am predominantly a stills shooter and that is my preference but I also shoot video, I dont call myself a videographer because I am not predominantly a video shooter.
Jonney, I know how to assess my requirements. I switch because I enjoy using different gear and new tech that suits my requirements at that point in time.