Here is the list of great buys VS not-so-great buys.
Great Buys
These coins all have various interesting projects in the works, have great communities and great developers. We consider these coins to be severely undervalued.
Zetacoin (ZET) (Daily Maintenance Cost: $228.13)
CryptogenicBullion (CGB) (Daily Maintenance Cost: $195.21)
Devcoin (DVC) (Daily Maintenance Cost: $452.23)
Frankos (FRK) (Daily Maintenance Cost: $1060.98)
Digitalcoin (DGC) (Daily Maintenace Cost: $8376.52)
Not So Great
Coins To Avoid
We consider these coins to be very gimmicky. While many of them have outstanding communities, their current maintenance cost is way too high to be sustainable in the long run. Most of these coins are brand new and are surviving off hype. Trading of these coins should only be attempted by experienced traders).
Dogecoin (DOGE) (Daily Maintance Cost: $1,060,957.44)
Mooncoin (MOON) (Daily Maintenance Cost: $133,602.05)
LotteryTickets (TIX) (Daily Mainteance Cost: $27,980.86)
Lottocoin (LOT) (Daily Maintenance Cost: $26,369.84)
Earthcoin (EAC) (Daily Maintenance Cost: $19,922.42)
Source:
http://cryptosource.org/good-buys-and-coins-to-avoid-how-daily-coin-maintenance-costs-should-factor-into-your-investment-decisions/