so i started mining dogecoin about a year ago.. only with a gtx 560 (dont make fun of me), because when i built my computer a year and a half ago, i put a ton into everything but the graphics card, and had no idea id discover mining soon after i discovered it wasnt so hard.. i only mined doge and vert, and now both are super low.. lol.. i had 20 dollars worth of vert, now its worth 2 dollars.. same with my doge i only made 705 of them so far =[ i think now is a great time to get in on vertcoin and dogecoin.
i was thinking about getting a new gpu for my birthday in september, preferably an nvidia.. but im pretty broke at the moment.. i believe all scrypt coins will be picking back up by november, and then we will see a huge rise in all altcoins over the next several months.. ive studied economics and pennystocks quite a bit when i was a bit younger working for my uncle. if anyone has any good affordable suggestions for nvidia gpu's, would like to critique my post, or would simply like to help a shibe out, ill leave my doge addy, although i doubt ill get any loves. will gladly return tips on coins, since i understand the market very well. i believe if i had a titan 6 months ago, i would have made a few thousand by now, all from hash power.
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You ought to consider buying scrypt ASICs instead; they are quite cheaper than gpus for a better hashpower, and they use less electricity.
Good luck in your endeavour