'If you spend $100k on amex a year it would net at least 200k FF pts' That's just not true. The value of points differs between AMEX cards. Not every AMEX earns 2pts per dollar spend. The Qantas American Express Discovery Card, for example, earns much less than 2 points per dollar.
Of course point earn differs per card. However I think you are missing the point that if you are going to pump $$$ through a card to maximise one's points earn that you do it on the card that will maximise that in terms of the program you want. So if you are going to put $100K through a card why would one do it on a low earning card? It would be foolish to pump through $100K earning at 0.5 points per $ when you could be earning somewhere between 2 and 3.
So one goes out of ones way to have the highest earning AMEX cards, and indeed not just any AMEX card. Just as one would not just use any VISA/MC card.
In any case, you appear to have missed the point entirely.
Spending $100k will net you at least 1 million points in 18 months if you churn. If you stay loyal to any card you will loose significant point earning opportunities.
For many people this statement is simply incorrect and would lead to lower total points gained. (Not to mention the loss of other benefits).
The logic of your statement is flawed. There is nothing to stop many people churning a multitude of cards while retaining other cards. I certainly do this, and based on the posts of many on this forum many, many others do too.
Not having the right Amex Cards also loses points that are there to be had. Having an Amex Explorer/Edge combo does allow a multitude of ways to garner 2/3 MR point earn opportunities including various manufactured spend opportunities that come and go.
But by all means keep doing what makes you happy. I'll keep building my tally by on average a million points a year with an average spend of much less than $100K. I've no doubt that keeping an AMEX card would loose me points.
Well in your case that may be true. For many of us it is not true as we earn more points by keeping certain cards while still churning CCs that stack up. Plus there are benefits to be had besides points.
Also not all points are the same value. A bit like not all $ are of equal value.
For myself I would value Krisflyer points at say twice that of a QFF point. Lower fuel fines, better value rewards by and large and better availability. Plus I prefer the product and service.
So in my case I would take 500K of Krisflyer points over 1 million QFF points. Not that I do not collect cheap QFF and VA points (and indeed CCs linked to these programs are normally the ones that are for me the ones that I churn the most) but I value them less than the ability to earn MR points (which can also be used on a number of programs besides Krisflyer). But again I collect them all.
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