On the other hand Stanley, you can't please everyone.  No matter what Daz or Smith Micro does, someone will be unhappy with whatever changes they've made.

No M4 and V4 don't have expiration dates; they do have a boredom factor though.  I have many gigabytes of content, and yet I still keep buying more--why?  I like to have something new and different.  A  new figure or program can bring fun back into this hobby when one is feeling burnt out.  Have I done every creative things I could do with M4?  No, of course not, but it's exciting for instance to  have this new Swole body type, which is freakier than the Freak, and get some looks I'd not been able achieve before.

Is this hoby a money pit?  Of course, but it's a hell of a lot better than collecting commemorative shot glasses. . .