A bargain larger than the need

Text A: an original contemporary practice extract.

The fruit stall offered a large crate of plums at a lower price per kilo than the small bags. I had planned to make two jars of jam, and the sign made buying more feel like the sensible choice. At home, I had one spare shelf and no wish to spend the whole weekend cooking. The seller asked how much I needed before reaching for the crate.

I bought a small bag at the higher rate. My total bill was lower, and the fruit suited the work I had actually planned. The crate would have been useful to someone preparing many jars; it was not a dishonest offer. Its good price described the quantity on sale, not the storage or time available in my kitchen. I left without needing to invent extra work to justify what I had saved.

Text B: an original contemporary practice extract.

The fabric warehouse sold a full roll more cheaply per metre than a cut length. I needed material for one window blind. The assistant explained the offer and measured what the blind required. A roll would leave enough for several other projects, none of which I had decided to make.

I chose the cut length, paying more for each metre but less for the whole purchase. The assistant said the roll might suit a group making several blinds. For me, keeping it would mean finding space and choosing further work simply because the material was there. I still liked the cloth, and I did not think the discount misleading. I stopped treating the cheaper rate as an answer to a question about how much I would use.

Both texts describe the decisions about the discounted purchases.

What similarities do the decisions about the discounted purchases share in these extracts? Use evidence from both texts to support your answer.