Well, "long lasting" really depends on many factors. I assume if the deal goes well, there will be several new vv mods at fair prices soon enough. Three years would be reasonable, I guess. But "long lasting" in its actual sense, whther one decides to change or not, would be nice indeed. Right now, at least, I don't see myself buying complicated, more expensive stuff. Since there seems to be a global recession and no one knows where this will all head yet (neither the optimists nor the pessimists) the expensiveness part may certainly play an ever increasing role. The "complication" part is not at all something to leave aside because we're not all that keen on electronics and mechanics and electricity that we all may be taken anywhere. I believe "doing things in a simple manner" is a keyword here. Quite frankly, right now we're pioneers of some sort and we're not really sure about how well the device will run or how durable it will be - or even if the Chinese won't fall in the temptation of releasing new, more expensive stuff, just to see how well it sells with possible higher profits. I certainly can tell they weren't expecting the kind of reception this vv mod of theirs got - which is weird in ways, since it seems a bit obvious. I also believe that's one of the main (hidden) reasons for this much delay... Etc. Other than that, I still haven't received any new email from Yovapeo but I know they asked the devices to be sent by UPS - that is whenever they will actually send them. 