I did buy a few LP's earlier this year, and although I didn't buy every week, it was good to check out new stock, and with their statement that they were continuing to stock vinyl I looked forward to being able to buy from a somewhat restricted choice, while doing our weekly shop. But, now there's an Argos branch we didn't need, and we're still finding our way round the reorganised store.
If I want to buy from a shop it means a day out to Nottingham or Derby, so I usually buy on line, whenever I decide to buy another LP.
I now try to buy better quality pressings, and now have multiple copies of some discs, but cost is always a factor, so some are "considered" purchases.
But Sainsburys shouldn't make statements they're not going to commit to.