Thing is, after 6-12 months you will burn out and no longer want to do it any more, its like a game rule that lets new players take over, then they burn out and a whole new players yet again takes over.

Its boring but its lucrative to .01 ISK

Once you hit a certain amount of ISK, the whole game changes for the Merchant.

You then move into market manipulations, I.E. buy out everything and realist at 200%, or find other endeavors to invest in, a good example is some one here in MD now has 2 merchants, soon to have 4 plans to start a whole mini hub on his own.

there's Patch speculation, bout half a year ago, some players found out some ship BPO's are going to go up in price by 50-100%, they bought say 100B isk of blueprints and resold them for 150B isk over 3-5 months, while others manufactured the ships at old mineral costs (procurer) 2-3M isk per ship and resold those for 6-7M isk right after patch.
matter of fact, notice how the Procurer's are priced in Jita, notice those 4 orders of 4000 ships, that's some one purposefully keeping the price down so their dirt cheep buy orders will fill for half a year, once every ones out of ships they will sell of their stockpile of 30-60K procs at 14-21M isk!

penny wars are 1% of the whole Merchant game here in eve, open your eyes and remember, Nothing ever happens without a reason!

have fun, I hope you stick around for a long time, it gets really fun down the road.