Just a couple of thoughts here. If you look at the Medeco or Best brands, you will find that a lockset or deadbolt will run about $200 for each unit. i have installed hundreds of the Medeco, but no Best branded locks. The Medecos are top flight, but they retain a definite commercial appearance as that is their market.
If you go the commercial route, make sure you check out the installation instructions. Most of them are box style locks, and you will either need some real time and patience to install them, or rent/ buy a deep mortise machine. For the most part these are not locks that you remove the old lock and simply screw a new one of them in the old holes.
Through all the years of installing Schlage, Kwickset, Baldwins, Ball, Yale and a slew of Chinese stuff, I like the Schlage for their price point. As I have said before, I used to have a contract with a local company to install their doors, and I have put a lot of Schlage product on. Never had a service or warranty call. Their newer finishes on their polished brass (starting about 5 years ago) hold up great.
The upper line has a good finish on it in polished nickel, oiled bronze, etc., that lasts well. The mechanicals are solid on their hardware. Make sure you get a deadbolt that has a 1" throw.
I put Schlage on my house about 27 years ago, and the front door lock still works smooth as silk. The only maintenance I have ever done on the lock was to take it out and clean it and re-oil it after every ten year mark.
The most important thing with any lock is the installation. I get good service out of the stainless steel generic brands ("Defender", "Titan" and such) for sheds, landlord repairs, etc., because I take the time to adjust the lock to work properly.
A lock is working properly when you can close the door easily with one finger and all you get is a "click". The deadbolt works correctly if you turn the key and can barely feel the plunger assembly move.
The best additional security I do for my clients is to change out the screws in the jamb side of the mortise. Instead of using the 5/8" supplied screws, I get 2 1/2" screws in cadmium to install the strike plates for both locksets and deadbolts. It takes an incredible amount of energy to get those out of the jamb with brute force.
Good luck!
Robert