Hardware improvement cycles are not some the same curves they were 10 years ago. So, short of a massive breakthrough, the improvement we can expect in the next 10 years will much, much smaller than what we saw in the last 10 (which was already much smaller than what we saw in the 10 before that).
They can still shoot themselves in the foot by intentionally buying underpowered hardware, but that won't be the fault of hardware trends, it'll be the fault of making a bad initial choice.