The 256Gb V90 fast SD card sells for $129 only at Amazon US (Click here). It’s the lowest price you can get now on fast V90 cards.
If you need a faster CFexpress Type A card:
You save 15% on the fast and most affordable Pergear Type A card sold by Amazon US (Click here and click on the coupon button).
You save 20% on the same card sold in Europe by Amazon DE, Amazon UK.