Sometimes if doesn't have to - it depends on an individual or businesses circumstances, for example:
Dilog 9083P £325+vat
Megger 1741 £875+vat
The Megger is £550 more than the Dilog.
For a business, an MFT is a capital expenditure as opposed to a revenue item.
Typically a business will apply the '25% reducing balance' method of depreciation.
In year one (the year of purchase), the Dilog would charge £81.25 depreciation to the P&L and retain £243.75 on the balance sheet as fixed assets. Whereas the Megger would charge £218.75 depreciation and carry forward £656.25 asset value. So in year one, the Megger has actually only cost you £137.50 more, i.e. less than one typical morning's work, to have the latest tool you fancy, drool over and work hard for.
Fast forward to 2024 when Megger bring out their newer flagship MFT, the book value on the balance sheet of your 1741 is just £155, but the street price for a second hand one is still around £400 and every apprentice wants one, so you easily make £250 profit on resale when you sell it, which offsets against the year one depreciation on your new tester.
Conversely the residual value on secondary and tertiary brands, is often beneath the 25% reducing balance curve, giving you little or no profit on disposal.