I would certainly be interested in other asset secured coins, similar to USDT, but perhaps a coin where the underlying asset is set to appreciate in value.
Gold, silver and platinum are good bets, as are other resources such as crude oil, natural gas, or even property.
Come to think of it, I think a crypto-coin secured against property could be highly successful, perhaps even paying dividends (tokens) on rental income or property development gains.
In all honesty, the project I was asked to advise which is doing just this (1 token equals 1 redeemable oz. of precious metal) solves an issue I thought of in graduate school for economics: How do you prove you own a tangible asset like you can an intangible. For example: in the EU, the sourcing of sustainable wood is required by law. How can you prove it's really not from an endangered area or over forested batch?
Blockchain, and intelligent contracts combined with low cost RFID or NFC chips could revolutionize supply chain management and solve an issue greater than just having a coin go "to the moon".
Also, having the asset tied to the weight of the metal, not the value, and allowing it to be redeemed by the token holder allows for users to have a secure method of maintaining their asset and even if the market crashes with other coins, this coin by not being fiat based will never have fluctuations in price. The cost of the coin tied to the asset is based on the value of the asset.