For me absolutely yes.
I would argue that in some cases it may not be cost effective and some cases maybe it is. If you have your own ground and can keep some or all of what you shoot then it may work out cheaper than the supermarkets (especially if you compare stalked deer to supermarket venison which is extortionate!), but if you are on a paid stalk and happen to shoot a reasonable sized buck and then pay for the carcass as well it probably isnt cheaper pound for pound and may even be more expensive.
However I think thats completely the wrong reason to go hunting! It shouldn't just be about "well I get my meat cheaper this way so..." These are wonderful living creatures that should be seen as more than walking fillet steak.
I got into it because I didnt like what I was seeing in some (not all) mass production of meat and in particular the wastage. The comment I overheard that kicked me into action down the hunting route was a couple in the supermarket buying food and the guy said "we only need 4 meals this week because we have that chicken in the fridge we need to finish up" and his other half replied "Oh I dont fancy that, can we bin it and get something else?"
I just thought dear Lord! Theres an animal that was probably bred in a barn, fed, grew up and then was shipped away to be killed and butchered and packaged in a little plastic container, only for you two to chuck whats left of it into landfill because you "dont fancy that tonight"?! That was awful!
And then I watched a film called Earthlings - Its an eye opener (although arguably borders on vegan propaganda...) and at the end I thought ok, I agree that was pretty bad and we treat animals pretty badly on average but I still like eating meat - so what to do?
I figured that the best option was to go hunting, get involved in the process myself and see how I felt about it. If at the end I felt that killing the deer was fundamentally wrong then I could hardly argue in favour. However the flip side is that it would drill home the gravity of the loss of life and the process that takes a living creature to food on our plates, something that far too many people have disassociated with IMO.
In the end I loved the whole process and the rest is history. That got me into reading about conservation efforts, the benefits of hunting, the need to manage deer and other wildlife properly. It taught me a huge amount of respect for our countryside and the creatures that live in it, it taught me about passion, endurance and patience. I've also met some awesome people along the way and enjoyed some fantastic experiences. Getting out stalking on the weekend is the highlight of my week, I absolutely love it.
Getting the venison is a nice bonus that sometimes comes at the end of the whole process with the positives of being ethically sourced and healthy - But its not the be all and end all.