What have I missed in the last 12 years?

I was really in to audio in my early 20s.  Starting in 2005 though, things got in the way.  I kind of lost track of where things went in the industry; got bored of reading about $1,000+ cables etc.  Married, two kids, four moves and three jobs later and now things have settled down and I'm rediscovering the joy of my stereo.  Current system:

Audio Physic Tempo
McIntosh MC202 Amp
McIntosh C15 pre-amp
Marantz CD-6005 CD Player (bought last year when my ~2000 CDP's transport went wonky)
Project Debut TT
Sansui TU-717 Tuner (rarely used)

Most (95%) of my listening is CDs, a broad mix of jazz/rock/folk/piano/vocal.  I love the vinyl sound, but don't have the collection of records to really make it the focus of my listening.  I see now that a lot more vinyl is available than in 2005.  Current room is 18' x 15' but the house is "open" floorplan so the room is more or less open to the rest of the house.  That's good and bad; good because I effectively have a much bigger "room" but bad because it limits volumes when the little ones are sleeping.

So, audiophiles--Catch me up!  When I left the hobby streaming was a joke, and most people were of the mind that (at least for reasonable prices) all-in-one CDPs were the way to go.  Fewer cables, synced clock rates etc.  Now I see lots of lower cost DACs out there.

Things I like about my current system?  Imaging is good, tonal balance is good.  What it lacks?  Not the most involving at lower SPLs, lacks low end punch.  A bit of a haze and lack of transparency.  Could use more "bloom"?

I'm thinking of resetting the whole system and going with low power tubes and high efficiency single drivers.  Thinking that with my SPL limits, might give me what I'm looking for.