I haven't watched the video but I've just googled a two night stay over a weekend in December and it's around £1.5k. Pricey, yeah, but that's a) for a weekend and b) in December, when I imagine it'd dearer. Plus that's a weekend where you have to book two nights, so you could probably do a weeknight in a different month and it be substantially cheaper. Even at £1.5k, there's no way he couldn't afford it, especially as he can surely offset the cost of some of it as a business expense?
Every time I've looked at his Patreon recently his subs have gone up - currently at 6,205 subs making $6,566pm (Alexa tells me this is £4,868pm). Yes there'll be fees/taxes etc, but still. If you can't afford it do what normal people have to and save up!