Sewsuzie, that jacket is beautiful, so delicate!
I bought pricey fabric for an outfit for my son's wedding a couple of years ago. I think it was about £60 a metre. It was beautiful fabric, great quality, and I justified it by looking at prices in a local bridal shop and telling myself I had a bargain! Cutting it out was a nightmare because I was so anxious, but it went okay.
Since then I've gone for the cheaper end of the market. I recently wore a dress to a wedding that I had made from cotton dobby at £3.50 a metre from an ebay seller and got compliments (always nice when it's a home make!). I'll stick to cheaper fabrics unless it's a very special occasion. Easier on the nerves as well as the pocket.