Thanks Bill
What you say is obviously true and, of course, it applies to almost anything, particularly electronics.
But it rather skips the point that when there is a more or less established pattern pointing to a product being near the end of its life cycle, then extra care is needed in decision making.
Ignoring this significant factor is, in this case, likely to result in either
1. Missing a superior product for little to no extra cost
OR
2. Missing a substantial cost saving (of perhaps £200-£500)for the original product, purely through ignorance or impatience.
IMHO, both these possibilities really matter to most potential buyers.
This particular timing factor also affects second hand prices, which will also not concern some people, but will be very important to others. One may be considering 'Product A', would much prefer 'Product B', but can't afford it, not even second-hand. But if Product B is superseded by 'Product B+', then second hand 'Product B' could quickly drop into the reckoning.
Timing of purchase can be really important.