I'll also be back in to buy ETH should it drop to £430 or below, sold my last one at £460 and I imagine it will reach around that figure again when like above Bitcoin reaches $19.5k.
I know I'm using dollars when referencing Bitcoin, I do that because it's against the dollar where the markets at, when bitcoin hits a wall it'll be a whole rounded figure like $16k, $16.5k, $17k, $17.5k, $18k etc etc
99.9% of crypto coins will move with Bitcoin most of the time, so even if I'm buying ETH @ £ sterling I'll be using Bitcoin and the dollar as a reference to look at any movement and spot the best time to buy or sell.