That works until, as happened to me some 10 years ago, it changes. The house insurer unilaterally decided, at renewal, that they'd not cover bikes valued over £500, at all. I used to get cover from them at extra cost for my 5 most expensive bikes:-
A Thorn Club Tour, value £1000, a recumbent bike, value £1600 and three recumbent trikes, worth a total of £6000.
In fairness I check stuff like that at renewal and generally you'll find they have different policies for new and existing customers with different excess away from the headline excesses.
Its also worth double checking with them prior to buying or during the cooling off period.
Another thing to watch is make sure your bikes are covered on the policy even after adding them on a comparison site quote generator wizard.
Insurance companies are often sharks and policies need careful checking. The best advice I ever got was to only use defaquto 5 star insurers. The price difference is usually minimal between the star rated insurers and often the same companies offer differing policies.
Thankfully, touch wood, never had to claim personally but I have for my parents and for a commercial policy.
One of my favourite Churchill Quotes is
If I had my way, I would write the word ‘insure’ upon the door of every cottage and upon the blotting book of every public man, because I am convinced, for sacrifices so small, families and estates can be protected against catastrophes which would otherwise smash them up forever.
Agreed though the TP insurance as bundled with some of these memberships is insane value. I'd be happy with the membership fee for the ctc simply for their work and magazines.