its hard for me to buy a higher end dual core cpu... why would get this instead of spending little more for something WAY better? idk.. i know i put together a budget build to give away with 20$ G1610.. or maybe it was less than 20 i forget.. seemed like 40$ got me 4gb stick ram and the cpu.. 2.6ghz dual core vs 3.5ghz dual core but 4x the price..
Firstly pretty scumbag of TD to go back on already placed orders and say sorry that's not the right price. You advertise it at a set price you sell it at that, you made a mistake well fix it ASAP and accept the few sales at a loss.
As for why buy an i3 vs a Celeron dual core? Firstly in single threaded performance the i3 can be quite a bit faster, and with the hyperthreading it has it can outpace the Celeron by a huge amount. Do you need an i3 for a websurfing or super super budget machine? Of course not. Does it destroy a Celeron (which btw is about $50 new currently) for any cpu intensive tasks and even work well in gaming machines? Yes, and that is why people would get an i3 over a Celeron dual core.
Don't get me wrong, they have their place and are great for parents/grandparents that only intend to websurf and watch movies or Facebook. But for more budget oriented gaming rigs, people who like to do a bit of hobbyist video editing, small software projects the performance different more than justifies the cost difference.