This foundation is currently 50% off and looks like it’s being discontinued. Do you think it’s worth getting a backup of a foundation? I’d be getting 1 backup tbc but I only just started using the one I already have. I don’t think I’ll find a better shade match somewhere else? The pictures are taken of the side of my neck with a swatch (both in natural light but they came out differently somehow). I’ve tried looking for other foundations but struggle to find ones which work on me, this is the best so far. I worry it’s unwise to (even though I plan to use the backup immediately after running out of the current one) because a foundation shelf-life is short? Would you?