I stream most of my music, meaning the amp is on for most of the day. In this set-up a good Class D amp could make a lot of sense right?

For my vinyl, it runs through the Firebottle Plus stage, so it will have a nice analogue signature before it gets to the amp anyway. A valve amp wouldn't make sense to be left on (sometimes for days on end) would it?

My floorstanders need a lot of current. I'd like to get an amp good enough to resist upgraditis for a long while, even if I end up auditioning speakers to better work with the amp and the room later on.

Any amp recommendations? I'd like to go less than £2500. And based on the above, I have a preference for integrated over pre/power or monoblocks, but any advice greatly appreciated. Please let me know what you think.