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You can often get them for ~£30 brand new on eBay.
I bought one before deciding to install MVHR instead; they’re genuinely silent in background mode, and the humidistat is very effective. No need to wire into lighting circuit, just mains. Set and forget.
Squeegeeing after every shower does wonders, as well as quickly wiping down the overspill around basins etc to keep the silicone sealant and grout fresh.
How much does that cost?