Porcupine Tree and The Mozart Effect

Was chatting with my wife today, and I mentioned that it is getting to be longer, and longer for bands to be successful. She set me straight. In my words, “In pop music they can’t be young enough.” However differently, I look for more than fluff, so that is what I see. What I am talking about may be called (in my own words), “The Mozart Affect.” Specifically, what I mean is that Mozart in all his grandeur was not a success in his lifetime. This affliction is not new. For many artists, take for instance the painter Vincent van Gogh who may have never even sold a painting in his lifetime, this is true, meaning that his works upon passing became priceless.
Below I use the Porcupine Tree discography to illustrate my idea.
Including, all releases (no promotional stuff), the following is a discography up to the first charting selection by year, which with Porcupine Tree it happened to be a single, though they eventually came to have charting albums. It was 20 releases later, and it barely charted.

1. Tarquin's Seaweed Farm 1989
2. Love, Death & Mussolini 1990
3. The Nostalgia Factory 1991
4. On the Sunday of Life 1992
5. "Voyage 34" 1992
6. “Voyage 34: Remixes” 1993
7. Up the Downstair 1993
8. Yellow Hedgerow Dreamscape 1994
9. Moonloop EP 1994
10. Staircase Infinities EP 1994
11. The Sky Moves Sideways 1995
12. Signify 1996
13. "Waiting" 1996
14. Insignificance 1997
15. Coma Divine 1997
16. Metanoia 1998
17. Coma Divine II 1999
18. Stars Die - Rare and Unreleased 1999
19. Stupid Dream 1999
20. "Piano Lessons" 1999. Was Porcupine first charting single. It peaked at 164 in the United Kingdom.