Put it this way, if you buy Kaze, you're supporting the European anime industry, not the British, as Kaze are a French company. Manga's parent company is US, Starz, so your money will end up overseas that way, Studiocanal is European too, so Ghibli money goes abroad, only MVM are still wholly homegrown and homeowned.
Importing is easy if you keep an ear to the licensing grindstone, and have it in mind which series are coming here and which aren't. I've lost count of how many titles I have bought, they are into 3 figures, but only 4 times have I purchased from abroad and wound up being 'stung' by subsequent local releases, Kiki's Delivery Service, Baccano (I thought it would be cut by the BBFC), Welcome to the NHK, and Ah My Goddess Flights of Fancy, the latter two were in limbo cos of the ADV collapse, so getting them early wasn't much of a pain, although Welcome to the NHK's subsequent UK release was better quality that Funimations.
However I have bought lots of Region 1 titles that had UK releases because they were cheaper to import, or they were simply better. Once you get into the habit, you'll probably want the best AV quality, and you'll soon realise that is rarely the UK release, especially for DVD.
It's fairly easy to guess the titles that won't be released here, they are the niche ones that appeal to a subset of UK audiences so small that distros won't make their money back. You'll be safe importing Ristorante Paradiso for example.
Australia is expensive, but when they're the only English territory selling stuff like Gosick and Nichijou, I don't feel the £80 hole in my wallet as much.