Remember what you're wanting most first & foremost, and paying for, which is getting good pics of what's coming by your cam locations, reliably.
You don't have to spend a fortune, but generally speaking, lower cost cams tend to perform less reliably than cams that cost a little more.
I love finding "deals", but waiting to find better deals can sometimes mean missing some valuable pics and experiences as well, which may not be such a good deal.
One thing I found by using several different brands & makes of cams was my human user error was much higher, say than compared to using only a couple brands or makes. Little things like walking away, not realizing the cam was in a non-working order, then not finding that out for over a month.