I am glad I finally made the plunge. This is my first new car eva and I'm no spring chicken. We usually buy a 1 year old car and keep them forever!
And about the irresponsibility thing -- #1 We paid cash.
#2 -- The dealership needed to run a credit check (they called it a "soft credit check")

since we were paying cash so that they could verify we were who we said we were. We reluctantly agreed to let them run the credit checks only because we know that inquiries can bring a credit score down. The F&I guy who we signed all of the paperwork with said that my credit score was the highest he'd ever seen in the 10 years and 100 deals a month that he's done at the dealership. I will wear that with a badge of honor. He said DH's score was probably the 3rd highest. I felt so proud!
I think they got suspicious about our credit when we didn't want to them to check it.