Saw a 737 while waiting for at H1 in mco, I heard the same thing from tower. We had to laugh, the CA said "single eng. taxi, I think the APU is pushing them"
That 100k thingy has to be funny math, college friend on 5th yr pay doesn't think he'll break 70 this year.
At 11 year pay at Delta, 737, around $110 hr and I will not break 100k this year. We have become middle class more so than ever over the past decade. Generations of pilots that proceeded us made significantly more when adjusted for inflation. Never feel guilty about what you make, feel underappreciated and underpaid!