

[…] I’d like to be able to backup to my home server. The main thing would probably just be my photos […]
For the photos, since you have a home server, have you heard of Immich? For anything else, there was a time when I could have recommended syncthing-android, but development on that has been discontinued, though you can still try using it. Some privacy-conscious cloud services may allow you to sync app folders, backing up WhatsApp that way, but I have no experience with that.
is the 8a likely to drop much in price after that? I don’t know how quickly the prices drop but considering the 8a is currently £500 I can’t see it dropping to <£300
Instead of buying straight from Google, you can consider buying a refurbished 8a off ebay or something local - my last two Pixel purchases have been through that method. It tends to be substantially cheaper than buying new, even as little as 6 months after the product launch, and the 8a launched 9 months ago. Just be cautious of seller ratings, reputations, and consistency - prices are lower there because it’s more of a risk for the buyer.
This is how empires die. Power and wealth accumulates at the top, until eventually a tipping point is reached, and those with power then use it to frantically loot the rest of the nation and skedaddle to foreign lands with their ill-gotten wealth as the empire balkanizes behind them.
In truth, the looting phase started with Reagan, but in recent times it’s begun to accelerate, particularly when Trump is in office.