Luca, don't die about spending all that loot. I've never really considered this before but with these X900 Epsons dying off to the scrap yard it could be that a used parts market is emerging. For instance let's say you just bought a 700ml cart, then blew 40% of it doing power cleans and killed your head. Printer is a total loss so it goes to the junk, and 420ml of new HDR ink goes down the toilet with it. You go buy a Canon clinging to the only trace of happiness you can, which is knowing you won't be in this place again any time soon. While that may be a trace of happiness, it's mostly sadness. I don't know how reasonable it is to sell something like half used ink on craigslist, but it does still have value doesn't it?
As for your cleaning carts, they aren't cheap either - and they too may threaten to end up in the can. I can help you here. I have a dream to set up an X900 machine specifically for cleanings, so I'll buy them from you when/if you're done with them. Why must we all face the daunting task of buying cleaning carts, purging all that expensive ink, filling the lines with cleaning fluid, rinsing the head, then filling the lines with ink again? It's too much I think. Ridiculous money down a ridiculous drain.
I haven't thought to share this because why would I, we don't even know if it's possible yet. But I have a dream. In this dream we will find a way to clear clogged heads. Once we do I will offer an X900 Rescue Package consisting of the following: head removal video, special phillips head screwdriver, empty printhead shipping box, four Hersheys kisses. You get the package, take your head out, ship it to me, I soak it/clean it, install it in the X900 cleaning carts machine. I do cleanings with it, print with it, confirm it is indeed clear. I pack it up and send it back to you. We all finally slip the knot from the noose around our necks.
Hell of a dream, I know, but that's my MO. I am a dreamer