I can't believe some of the responses here. Boston has been one of the great bands of the last 30 years, even though they have only released six albums, one of which is a compilation of greatest hits.
Their debut album is STILL the biggest selling first album in history at 17 million copies. Mariah didn't do that. Whitney didn't do that. None of the glorified lounge singers from "American Idol" have done that. Their music stands the test of time...it is still some of the greatest and most melodic rock music ever made.
Tom Scholz is a perfectionist (not to mention a very, very smart man who holds several patents on guitar equipment design). That's the big reason why Boston averaged six years between releases. That's also why CBS sued the band for breach of contract in the early 80s.
"More Than A Feeling", "Don't Look Back", "Amanda" (their only No. 1 single), "We're Ready", "Long Time"...you always knew when you were listening to a Boston song.
Those of you who do not appreciate their music, I would say rent the CDs from your local library and give them a listen. Boston, IMO, is the closest thing that rock music has had to a classical orchestra, the musical stylings of Jim Steadman notwithstanding. So, ExiledInIllinois is correct on that.
According to their Wikipedia entry, Boston had a new album and a tour this summer in the works. I hope that they go through with both of those in Brad's memory.
RIP, Brad Delp.