Ask whether the thing can be repaired at all

Repairability decides whether a small failure ends the item or is a minor afternoon.

A great deal of what gets thrown out is functional apart from one small failed part. Whether that ends the object depends on decisions made in its design: whether it comes apart with ordinary tools, whether the parts that wear are the parts that can be replaced, and whether replacements are available to somebody who is not the manufacturer. These are answerable questions and almost none of them appear in the marketing. You can often answer them by looking for repair discussion, service information, or simply whether spare parts are sold anywhere at all.

Repairability is not only about saving money later, though it usually does. It changes how you use a thing. Items that can be opened and fixed get maintained, because maintenance feels worthwhile. Items that are sealed get treated as consumables from the day they arrive, and are replaced entirely at the first fault. Over a decade that difference is substantial in cost and in waste, and it is decided at purchase, by you, in about five minutes of checking. It also quietly changes what a household feels like, because a home full of repairable things is a home where a small fault is an errand rather than an expense.

It is also worth knowing where you stand if something fails early. Australia has consumer protections that apply to goods sold here, and they exist independently of anything a seller offers voluntarily. This publication does not give legal advice on how they apply to any particular purchase; the relevant consumer authority is the place to check what your protections are and how to raise a problem. Knowing that the protections exist, and where to look them up, is part of buying calmly. It also removes a common source of anxiety at the point of purchase, which is the feeling that once money changes hands you are entirely on your own.