You certainly get what you pay for, and a lot depends on the value of your products, and how much you value your customers.
Hermes and Yodel couriers as well as a few others only get paid on delivery of the parcel, each time they attempt delivery it costs them, so a lot take short cuts, leaving it on the doorstep, putting it in a handy bin, throwing it over fences. If this is how you want your goods treated, then carry on.
Other reputable firms may be more expensive, but they offer you a secure pick up point if you are out, most will attempt a redelivery if asked for. They also include insurance to a maximum value should the parcel be lost or damaged.