Australia doesn't offer the same generous trade-in deals on used Apple gear compared to the USA when used to offset the cost of new gear but it has been determined that my two-year old iPhone 13 Mini 128 GB is worth A$500 as a trade-in.
I have assessed my desires and finances and will most likely be buying an iPhone 15 Pro 256 GB in natural titanium colour/finish. See my previous post for the reason for that choice of colour.