John, as you say, it is a subjective topic.
I have used every variety of shooting board and shooting plane, and have written extensively on them. A shooting board is important for me to finesse a fitting, especially drawers. A dedicated shooting plane is a bonus - I do not believe that one is essential, but it is a boon if you can afford it. There are other planes I place ahead of one, for sure. It comes down to personal priorities.
I have demonstrated that the LV LA Jack can be a nicer and better experience than a dedicated shooting plane, such as the (no-longer-made) LN mitre plane #9. It depends on technique. And then, a shooting plane, such as the LN #51, is a real step up from both these, especially when in a dedicated shooting board (rather than one which is also used for other purposes). This is because the #51-varieties have a difference balance point, and require a side rail to track straight. I am fortunate to own both the LN #51 and the Veritas Shooting Plane, and can use either on a Stanley #52 shooting board. I think that the LN is a stunningly beautiful plane. However the Veritas lives on my shooting board as it is a better user. Review here: http://www.inthewoodshop.com/ToolRev...tingPlane.html
Regards from Perth
Derek