Tint differences.
The place I went charged me $120 for my back 3 piece, fronts and the 2 triangle windows. I paid an extra $20 for a windshield strip. I think it would be a little cheaper if you had a solid piece in the back.
Tint prices are based on quality of materials. My shop in Maryland only uses Suntek and Global films, they are high quality films and they last 10-12 years. And we have customers rolling in from as far as Ohio, Florida, and New York. People have some preconceived notion that 3M makes the best films because they are a name brand, but unfortunately that's not the case. Here in MD for example my shop charges $220 for a 4 door truck with a three piece slider. A shop about 30 minutes away charges $350 for the same quality 3M film and lower quality work. You can get your truck $100 dollars but you'll get paper thin film with no hard coat and it will fade to purple in a couple of years.
True it speeds up the deterioration by drawing the dye out of the films. But UV damage will cause a lower quality film to bubble and peel much faster than a premium line film.
You need to do your research. Being an educated consumer will protect you from getting burned. Find out how long the tinted has been in the industry find out whether they hand cut or computer cut (hand cut is better). And find out what materials they are using, my shop uses Suntek and Global films.





