"Rhodium is currently cheaper than gold"
Rookie mistake...welcome to the world of investing. A $100 stock could be "cheap", just as a $1 stock can be "expensive". The mistake you're making is looking at price alone--and first might I add. Price should always be the last thing one looks at before investing..
Heh... if by "cheaper" you mean it costs less to buy an ounce of rhodium than an ounce of gold, that'd be like saying Bank of America stock is "cheaper" than Wal-Mart stock. Totally apples-to-oranges, dude...it's all about fundamentals. You can't compare an ounce of rhodium vis-a-vis an ounce of gold, just as you can't compare a bushel of corn to a bushel of soybeans by price alone. Although soybeans are twice as "expensive" as a bushel of corn is, that, quite frankly, means jack shit. What matters is the demand and supply of what's in question.
What's most irritating is how you went about presenting your case. You told everyone what you did and gave a brief explanation as to why and are sitting smugly behind your decision. I honestly don't care, but it's annoying more than anything that one feels they can get away with indirectly offering investment advice in passing when they are completely off the mark. If rhodium even were to go to $10,000 tomorrow, your analysis wouldn't be validated. 50/50 shot you make money off of what you did..you're not a genius by any means for flipping a coin and getting the right outcome, but the suggestion that gold is more expensive than rhodium on the basis of price alone is quite a novice observation..
But hey, it's your money.