I see this as a decent idea.
Which is the bigger risk? Package at front door getting stolen or a courier who knows they are being recorded setting something inside your home? I think the package at front door is a bigger risk. Granted this is definitely a suburban area solution. The secondary risk is the lack of professionalism you may find in couriers. Do they validate your door is secure?
For me, I generally don't worry about 99% of the things I buy from Amazon as they arrive via USPS and go to my centrally located, locked, mail box in my community. This is a big reason I stick to items 'shipped by Amazon' otherwise the 3rd party seller may ship via UPS/Fedex which is then left at my door.







