I really don't know what I'd do.
My collection isn't properly insured as by the time it got to a size that I realised was worth insuring it was well past a point of being able to catalogue without going insane.

I would only get a fraction of what it's worth.

I don't think I'd stop collecting but I certainly wouldn't be able to afford to replace everything I have now. either time wise or money wise

I'd be devastated but I'd still buy more transformers, I'd probably replace key figures from various lines. I don't think I could actually stop...