Yep, my wind reading skills got a huge boost once I set up the camera. There is so much you miss when you are looking at a bunch of holes after the fact. That also taught us alot about bullet habits but that is another story.
Not sure how handy you are with electronics and a soldering iron but they can be made for dirt cheap. I run an analog set up with digi cam and monitor .... think LR cordless phone.
If you prefer the wifi to laptop type set up, I can offer you a very well priced set up that is so much better, nicer to use then the big dollar set ups (yes, we tried them both)
If you are just field shooting and can spot your impacts, the camera fall towards a "want".
if you are shooting for score, it rapidly becomes a NEED. The money it will save in ammo is massive.
Jerry