I have also been getting tons of feedback saying that mining is not worth it. If anyone is indeed interested in trading/mining alt currencies, DigiByte is currently #1 in profitability of all of them.
Different Websites will have different prices based on the market price as well as fees. If you are interested in learning about alternative currencies other than bitcoin, head over to https://bitcointalk.org/index.php?topic=408268.0 to look at DigiByte