Well, clones can work, some better than others. A shining example is the Russsian 91% vs the Kayfun Lite - however, even there, the Russian is almost as expensive as the real one.
I did buy a Nemesis from Atmomixani. I also had an expensive original atomizer up top; and ended up by loosing that setup while at a friends house. The friend then bought me a Nemesis clone for christmas. I can tell you personally the performance is good on the clone; but the original had much higher manufacturing standards. On the clone for example; I sometimes have to take the atomizer off and tighten up the head contact screw in order to take out the battery. Why? Because the threads are so loose that trying to remove any component spins the battery on the contact, and the contact pitch is greater than the thread pitch on the body tube, making each "loosening" twist of the body tube actually tighten the whole mod up.
I like the idea of the budget clones; it's better for us vapers to not have to have $300+ sitting in our pockets, or our hands, to vape; but it's also bad too - after all, someone had spent time and money to develop the product to bring to market, the cost of originals isnt all just free profits you know
That being said, going forward, I intend on getting the clones first, to get used to a device. Nothing quite punches you in the gut like spending $150+ on a device you hate to use
