My limited Greek isn't too good, but does pentozali mean five steps? If I'm wrong then λιπαμη!
To answer your original question I find it brilliant that the traditional dancing is still carried on today by local people. Tourism can spoil many of these events and pretty soon you can be left with a false heritage that has blossomed only for some tourism merchandising. The over exaggerated plate smashing on islands like Symi for example, where hundreds of plates are smashed for tourist videos has little or nothing to do with traditional Greek culture. Why would it be the local custom to smash plates after a meal?
When you do find yourself "caught up" in a genuine happening, then it doesn't just add to your holiday, it positively makes it. Because I attempted to speak a bit Greek in Agios Palagios, my family were invited to a local taverna where the owner, all his customers and my wife and daughter ended up dancing round a table drinking far more tsikoudia than is good for ones general sense of well being. We also sampled the traditional meal of goats testicles because we tried to engage with some locals. If you ever get offered this dish then I implore you to try it as they are absolutely delicious. Apologies for going on a bit and slightly off track, but when it is genuinely local, unorganised, unplanned and you just happen to stagger upon it because the ancient Gods are smiling on you that day then yes - that is brilliant. Ειναι Ελλαδα, ιτσι δεν ειναι