I have a friend that wants to sell me their D90 but my two front runner cameras are D3300 and D5200 I think she wants about 350 for the D90 and I'm not sure I kind of lens she's going to include I'll find out more soon.. but any thoughts on buying a used camera ? I read up that it came out in 2008 so I I'm feeling like that's a really old camera even if it was good when it came out..almost 8 years ago!!