I agree,...
You have an issue with usage and/or lack of effort on your "scary" sized rig.
My 2¢ is that you have way more capability in the analog rig you have presently, than with a myriad or practically a whole class of all-digital 8-trackers out there, that to spend out of pocket on that at this point is foolish.
Following that idea, I think your best value is to hook it up, mount tape and commence recording and mixing. You've not even scratched the surface of your present capacity, as is.
Also, a so-called comparable digital 8-tracker (and it never is truly comparable), such as
the DP-02 or
DP-02CF will run you $300-$500 out of the box, and you'd have gone backward a great distance in capability as a standalone unit. Given your current setup and capacity, IMO that $300-$500 would be better spent to invest in some tape, and it is still available.
To say you've never started recording on your 1/2" rig because you percieve a tape shortage, though you have a few reels on hand,... just shows a lack of effort, flawed reasoning or a mental block (creative block) of some sort.
Please, that's no offense, of course,... but I think your true value is spinning it up and scoring a few reels as you go along with your project. It doesn't take $300-$500 investment in chips or tape in the immediate sense to get you recording today. You hook up your stuff & press the red button. An immediate $0 value!

Tape is available, and you could go a reel at a time, or per month, etc.
Digital's out there, with music shops full of gear, but it seems you have e'thing you need already. You also have to invest the time on your gear. You wouldn't necessarily be more productive if you bought a DAW, it's not an absolute cause/effect relationship. You have 8-in/8-out/8-simul recording right at your fingertips, something that you rarely find in a digital 8-tracker. You need to get the 24-digi-tracker to have 8-simul and more limited mixing than what you already have. That's a cool $800, (2488mkII).
I'll warn you up front about becoming obsessed with gear acquisition that can often surpass one's ability to use such gear effectively! You heard it here first!

