I wasn't an only child, but yes, I'd say I was spoiled. I was the last of 5 kids and both parents worked night shift (blue collar). I had old parents: dad was 42 and mom was 40 when i was born. I think they were tired of raising kids....I remember practically raising myself with the help of my brother and sisters.
My parents didn't drink (dad had a very occasional beer) or smoke. They didn't spend money on junk. We had a yearly vacation and a decent Christmas, small birthdays but really nothing in-between. Both parents lived through and remembered the depression.