I am new to vaping, and just wondered if the cost difference between a real Caravela or a real Nemesis and the cones of these models are worth the price difference.
Not so much a difference that's it's worth paying full price for most MODs. The performance of some clones is even better than their original namesakes. The Hcigar Nemesis is supposedly BETTER than the original. Either way, you can get an Hcigar Nemy for around $30, while a real Nemy will cost around $200.
If you like a particular MOD and there is a clone for it, do some research in to that clone to find out how good/bad it might be. It's very model dependent. Sometimes you might want to have the original for purposes other than performance or price.
I have both clones (Hcigar Brass Stingray, 69, and Carvela, and an Infinite Tree of Life and Black Copper Stingray) and originals (Sir Lancelot, Roller, EPM v2). It's all about preference.
Any idea as to what the cost is for a real Caravela (without the atty)?
Most original MODs are made by either very small companies, or funded by just one or two people. Because of their limited resources, most original MODs are done in very small runs. Some modders also like the idea of their MOD being an exclusive item, and so purposefully do small runs.
The Caravela is one of those types (which I don't know, nor do I care), and it's unattainable unless you are willing to spend lots and lots of money on the secondhand market. Many MODs are this way. That is one reason why clones are everywhere. People simply can't get originals most of the time unless they happen to be lucky both financially, and being in the right place at the right time.