I bought my 2003 for 3400 back when it would cost twice that to buy a 600cc sportbike of the same year. I love the bike.....after putting full 636 suspension, full exhaust, ZX10R tb conversion, altered gearing, pc3, innovate tuning, etc, etc, etc. OK maybe it would be cheaper to fighter out a sport bike. Although, I really like my bike. Nobody knows what it is at this point. Why do people ride 50 year old bikes? It is just cool that's why.
To be fair, I don't really get the new Zeds. I rode a new one and it feels like mine with all the mods on it, but I feel like the price is pretty comparable to the flagship models (What is 14000 if you are spending 12000 anyway) and you aren't that unique if you bought it right off the showroom floor. The naked zed isn't comfortable enough to really tour and you have to mod the Ninja1000 to make it bearable so I would just get two different bikes.