In my case Andy it was to sell my Labradar before the resale value crashed, which it surely will when the Garmin arrives in the UK.
second hand Labradars were selling for £400 - £450, the cheapest I have seen for sale is recently was £250, that's a big hit when you paid £600 plus for one.
The Garmin is 100% worth getting if you use a chronograph frequently.