Bands that could have been successful, but weren't

Well they "invente" Pronk right?

 RIP Tim Smith

A brilliant Band , no doubt about it!

P.S - The double album "Sing To God" is a hidden gem!

 Renaissance 

 Caravan

 Arena

 Hatfield and The North

 Family

 National Health (Oddly H%TN) almost repeated itself

 Here´s a small example... but possibly one of the reasons by lack of charting or poor sales (bad promoters and labels didn´t a proper work) some were very short-lived bands, but the Music...Fabulous.

https://www.youtube.com/watch?v=ax9yT3t1jSI&t=291s

That's fine! It is true Porcupine Tree either had a very good marketing team or were just advertised a lot, but I think they could have been more commercially successful - I don't think I've yet met someone who didn't like them. 

Yo my man I had a sh*t week and it reflected in my posting attitude here the last couple of days. I apologize to you and the community if I've come across as overly cynical. All is well. I get brash when I get antsy.

I am not sure where I first heard of Dream Theater but it may have been from the now defunct progression magazine. I remember seeing their cds in the stores around 93-95 and may have even heard a track or two on the radio but I don't remember what it was. I also heard of King's X(who never became very big)around the same time or maybe a little earlier. I first heard of Tool around that time as well(one of my friend's friends liked them and I remember the song with the lyrics "you like cheat, beg and steal" or something like that). Opeth I didn't first hear of until around 2000 or 2001 or so maybe but they were starting to get pretty big even at that point. I imagine some people might have got them mixed up with another metal band(non prog metal)called Otep. As for Porcupine Tree the very first time I heard of them was in a prog mail order catalog(the laser's edge)back around 91/92. I didn't think much of it at the time. That was also the same time I first heard of Ozric Tentacles(also featured in the catalog). OT never really got very big(or at least not as big as PT)but they did seem to get noticed a lot sooner than PT and for a while were probably more well known(then eventually as known). That all changed when PT were signed to lava records in 20001 or so and put out In Absentia. I even remember hearing "blackest eyes" on the radio once. That album didn't actually chart(at least in the US)but it start the trajectory for PT to be bigger and the album eventually became a classic and is now considered to be their best among many prog and PT fans.

Really? Tool were huge in the 90s, had videos on MTV.

Dream TheatER had a minor hit with Pull Me Under, seen it when it came out.

I've heard of Porcupine Tree in the early 2000s. Funny thing I heard them first in a bar, the only time I asked the bartender who was playing. 

Maybe but PT are still way more well known than 99 percent of modern prog bands. There's maybe a few that are more well known but most if not all of them have other elements that make them fringe bands(ie Coheed and Cambria and Muse). Also, as well known as DT are they still aren't played on the radio and still aren't as well known as Tool. So there's almost always going to be a bigger dog. Unless you're Pink Floyd. :P