Have you ever played through one?

No... unfortunately I never had the good fortune to come across one 8x10...
Though I played once in the 4x10 and that was a great moment. Even if I didn't have my dear Sadowsky at that time and the modern SR EMG tone was quite strange through the vintage amp...
But I sure loved it!
Now, unless I win the lottery and become insanely rich, I won't buy one.
I just don't need it!
My Trace Elliot combo is gathering dust in the studio, I use it 2 or 3 times a year and more because I miss it than because I need it!
The fact is, I could perfectly do with no amp at all, it's a little sad, but that's the way world goes...
As I said before:
The time of kemper and helix has come...
The only time you'd regret is when the rest of the band scatters when you need a hand moving it