For $2200 the question is what type of coating is going to be applied? There are two very distinct types of coatings out there, Professional coatings and Prosumer coatings. The Prosumer coatings are going to cost about $100 for the actual product and most last between 2-5 years if properly maintained. They are easy to apply and remove with a polisher and some compound. The Professional coatings are very similar to the Prosumer ones but they are much more durable and usually will have a 10-15 year life span. As an average consumer we are not allowed to buy these, they need to be purchased and installed by qualified installers. Why? Because they are super hard and durable. If a mistake is made and there is streaking or uneven spots when applying a professional coating the only way to remove it is to wet sand the product off, buff the sanding marks out and reapply the product. That's not something the manufactures want customers doing as there is potential for greatly damaging the vehicle if not done correctly.
I have to disagree with Bminada on that coatings aren't worth it. I think they are. both of my vehicles are coated, My sister in law's car and her husbands I coated and I coated my father in laws Mini in the fall as well. I used Gtechniq Crystal Serum light topped with EXO V3 which runs about $120 for the combo in the 30ml size. That's enough product to do 2 full coats on all but maybe the largest vehicles like a suburban or something similar. The coatings still need to be properly maintained with frequent washes, just like you would wash a non coated car, but the washes are much easier to do since the dirt doesn't stick all that well to the coating. Using something like CarPro Reset as your wash is a good idea as it's designed for coated cars and helps maintain and restore the hydrophobic properties of the coating. There's also several easy to use coating toppers such as Carpro reload, Gyeon Wet Coat, Gyeon Bathe +, McKee's Hydro Blue SiO2, McKee's SiO2 wash, Kamakazie Overcoat. Most of these products are simply car washes that add a bit of SiO2 coating back to the car or are basically spray on products that add SiO2 coating onto the car. They are not harder to use then your typical quick detailer or spray wax.
Yes, the initial time investment to coat your own car is high, or expensive since the car needs to be polished and prepped correctly before applying the coating, it's labor intensive but after that you don't have to do much to the cars finish, no waxing every 3-4 months or anything like that. Wash the car, drive the car, once a year use a SiO2 wash or coating topper and your good to go. It's much less time spent actually waxing the car. So for me it's worth it. Plus it does add a bit of durability to the finish to protect against swirls and marring from washing and stuff like that. A Coating will not stop rock chips.
For Rock chips a PPF is the way to go. I have the front of my car covered in PPF Hood, fenders, bumper and mirrors. They also threw in door cups which protect behind the door handles from scratches and what not. I got the PPF applied within a month of owning the car and then coated everything including the PPF. It's been 3 years now and I'll likely redo the coating this spring when it warms up a bit. I used Optimum Gloss coat which says 2-3 years top and the hood and roof are still holding up great but the lower parts of the doors are showing signs of failure from the road debris and spray kicked up on them from Wisconsin winters.