I have always been a firm believer that low cap coins are the best way to go. Even if the coin reaches max supply, you have 8 (or more) digits of fractional supply backing up the value. So the coin should, in theory, gain in value over time, until market demand and usage have reached a peak and stabilized. At this point, the value of each fractional amount (satoshi), will be worth enough to allow purchases using only fractional amounts for almost all low-mid value items in the market. You will probably never be able to buy a house with sats, but you could possibly buy a sensible automobile with some if the value of the coin is high enough.
ETIG is using this model, and it's something that is not used in the ethereum realm. We've seen this model used in scrypt and cryptonight algorithms, and others, but ethash coins seems to take the opposite route. This is due to the possibility of network congestion and high tx fees, but I see this limitation being overcome in the very near future, making ETIG a solid, long term investment. *I am not an economist by trade, so my advice is strictly speculative. But so far, over 90% of my investments/mining ventures have been successful, so take it as you will.*