They were great from the start but I do agree with the OP. The Paris album is imo a maturation where they got it just right on the prior Breakfast tunes. Definitely one of the 10 best of all time bands.
Supertramp
Particularly the album 'Paris' which ive always thought to be one of the greatest live albums of all time although some beg to differ. The song 'you started laughing' will forever stay with me as one of the greatest songs ever performed live in concert. Are there any Supertramp fans amongst us that might share their admiration for the band?