Cheap versus expensive in basics
Short answer: In basics the difference comes mostly from the weight of the fabric and the execution of the seams. Two garments at very different prices can have the same fabric.
What you get for the first money
From the cheapest to the middle range there is a real difference. The fabric gets denser, the neckline gets rib knitted and the seams become stretchy. You notice it after three months.
What you get for the next
From the middle range upward the difference narrows. You pay for finer yarn, more colours and better fit, not necessarily for a longer life. See bamboo t-shirts for men.
How to choose sensibly
Choose by how often you wear the garment. For something you wear once a week the middle range is plenty. For something daily a better fabric pays for itself. See bamboo underwear for men and bamboo clothing for women.
Frequently asked questions
What does a sensible basic t-shirt cost
It varies, but the step from cheapest to middle range gives the most.
Are multipacks worse
No. Multipacks are often the same product with less packaging per piece.
Can you see it in a photo
Rarely. Weight and neckline are the two things that decide it.