I guess you haven't read any of the threads about how slow the Tyros's are to load up samples. That GB will take nearly an hour to load!
Although you DO pay for those SRX boards (not that TOTL sample libraries are cheap, or even plentiful for the Yamaha's closed format) you gain all their sounds being instantly available. Mind you, it's not going to fix your drum problem, as they don't make an SRX board with newer drum kits on it (just older legacy stuff) of the V-Kit standard.
But trust me, if you hate the E80's drums, you are going to cry when you hear the Tyros's
And you'll be looking to get one for $1000
Best of luck, my optimistic friend...
The difference between the E80's mastering section is that there are TWO. So an overly aggressive RH part does NOT duck the arranger side down. No such luck with the Tyros's.
And, I'm sorry, but I can't even agree with you on the thing that you DO like! Unfortunately, unlike Korg's Guitar Mode, or the new T3 guitar NTT's, the Roland Guitar Mode is live playing only! It does not work with the style section at all. For most of us, the whole idea of a Guitar Mode is to do authentic guitar parts in the style section, while we play other parts ourselves. You might not have gotten around to finding even THAT out given the rushed assessment..
Oh, BTW, although yes, the E80's RAM disk tops out at 64MB (and stores the OS and ROM styles) - my bad! - the Card slot is functionally identical, and can accept up to 4GB Microdrives. Instantaneous loading (no transferring to RAM first). Not too shabby.
Look, you are entitled to your opinion. I only hope that you don't review the T3 in so hurried and negative a fashion. If you think Roland users get defensive when faced with inaccurate reviews, wait until the Yamaha fanboys let loose on you!
Negative opinions are fine, but when accompanied by so many factual mistakes and failure to understand core concepts, should be taken with a liberal pinch of salt, IMO...