Don't be too discouraged. My rule for buying Bitcoin or Scrypt miners is this. Never pay more than 1. $0.50 -$1.00 Per Gh/s for Sha-256 "bitcoin" 2. $50 Per Mh/s Scrypt
Currently I have
1: 16 YellowJacket (Nanofury chips) and they average about 31 Gh/s. Traded out for Illustration work I do, Cost - My time
2. Rockminer New R-Box 110-120 Gh/s Cost -$67
3. Gawminer Fury and Zeusminer Blizzard 2.6 Mh/s Cost- $95 or $47.50 each
4. Gridseed Dual miner "Gold" 10Gh/s(sha only) 340 Mh/s (scrypt only) Cost -$23
Seems like a very small amount of hardware, BUT paying attention to the coin exchanges and new coins can really make the difference. You won't get rich using this little of hardware, You will start earning enough Bitcoin that you can get more hardware.
The coins I like to mineSHA-256
Bitcoin "Slush's" pool https://beta.mining.bitcoin.cz/home/
100 Gh/s or more is better for BitcoinScrypt
2 Mh/s does well on this poolAltcoins
- CPU and GPU mining
1GH http://hvc.1gh.com/Multipool (Scrypt)
Scrypt-ASIC or CPU/GPU ming
Thats just a small list of places I mine at.
CPU/GPU mining isn't exactly dead, however new ASIC hardware is going to be coming out that will mine altcoins. Also, ASIC is much more energy efficient. Hope some that helps.