Quote from Daal:
I just calculated the implied interest rate in the mini Gold contracts from NYSELIFFE(Essentially the size of the premium you pay for contracts further out). From June 2012 to Dec 2013 the rate came out at 0.09%, this is about ~0.22% for yearly financing of a $55K gold position with about $3K margin(Little less actually). Commissions for rollover costs are quite small($1.62 per contract I believe, 2 times a year should be enough, bid ask spreads are tight even going out many months)
Compared to 0.4% expense ratio for the ETF and something similar to that for putting gold in banks.
Margin requirements of course are much worse and this is where the a LOT of percentage points are given up if you don't use the futures. With the ETF you are forced to pay up 50% in cash(It's actually 100% because borrowing from your broker can quite expensive) and physical gold 100%. The futures require little less than 7% and it doesn't have to be cash, can be stocks, gov bonds, some fixed income ETFs, etc
This should add 2-3% a year for conservative fixed income portfolio for the next 10 years. In my case, since I live in Brazil. Its even more, real rates are quite high. Giving up 2-3% a year in order to satisfy some paranoia about having to have the gold in front of you is just insane in my view. At 2-3% one is overpaying a LOT for that Mad Max option
Plus its always nice to have positions that don't use up cash so I don't have to pay IB their 1.5% a year
I agree you should generally use the most efficient way of getting exposure. I've not advocated favouring GLD over futures or physical, I would choose a mix of whichever provided the best characteristics. It's useful to have some physical, especially living in a South American country where a government raid on your brokerage accounts is a genuine risk. And futures have the drawback of incurring capital gains every time you roll over, whereas physical and GLD can be held indefinitely with no taxable gains.
I'm not sure where you get the 2-3% a year figure from. Let's say you hold 10% in gold, you are giving up 0.1x t-bill rates. At the moment that's virtually nothing. Even in somewhere with 10% t-bill rates, that's 1% per annum, and such a country definitely will have credit risk. As for other things riskier than t-bills (commercial paper, medium-term government bonds etc) - you shouldn't go into a 'conservative fixed income portfolio' with the majority of the gold portion because then you increase your exposure to capital losses from rate rises. Any yield-chasing is taking on extra risk, which you are already doing in the stock and bond portions. If you want higher return for higher risk, then increase your stock allocation, that's the most efficient way to do it.
Finally, I don't consider it rational to risk total loss of all life savings in return for an extra few basis points. Disasters happen and keeping 10-25% of your net worth in such a scenario is well worth a few dozen basis points per annum.