"I think we've come a long way since then. The big thing that changed was when ecstasy came along in Britain"

This quote by Neil Tennant is describing the changes in the music industry considering that the 1980s. He is suggesting that the intro of the drug ecstasy in Britain had a significant influence on the music market. This is due to the fact that ecstasy was related to the rave and club culture of the late 1980s and early 1990s, which saw a shift in the kind of music being produced and consumed. This shift was away from the more standard pop and rock music of the 1980s and towards the electronic dance music that was popular in the rave and club scene. This shift in music was likewise accompanied by a shift in fashion and lifestyle, as the rave and club scene was associated with a more carefree and hedonistic lifestyle. Hence, Neil Tennant is suggesting that the intro of ecstasy in Britain had a significant impact on the music market, as it changed the kind of music being produced and consumed, as well as the fashion and way of life related to it.