So I had no real interest in Apple Watch,up-until recently..I still think it's far from being what it should be, and the design is not so hot, etc etc but all the sudden I'm craving one. so my budget for watch will be limited to Sport , Series 1 only . I've found a good deals on used but in excellent condition 1st Gen sport model (the original) and I can get it for around HALF the price of the brand-new series 1 sport. so is it worth it? or I should just skip it no matter what and go for the series one? I do not want to buy it just because it's cheap and then be stock with an slow,laggy product than will be useless in 6 months. I know people were unhappy because of lag and slow performance of the original, but I keep reading with watch os 3 the original performs almost a s fast as series 1.is that true? what do you think?