Funny, I am looking at a 2018 with the same amount of rust. I am leaning on keeping mine as my purchase end date is coming up. I have thought about it all week as I don't like rust. My 2019 Tundra that was in a salt climate for 2 winters when I bought it off showroom floor and it doesn't look that bad. But, I was washing my undercarriage through a car wash often. I think if you like it get it. Find the color you want and you can always get some VHT roll bar and chassis paint and touch up the areas your concerned with. If you take it off road the desert. gravel, ect. with hit and mark the frame and knock some paint off then you will have rusty spots.