I'd prefer this approach, rather than hastily rewriting a stable codebase in the coolest trendy language. 9 years is not that long for a programming language.

I'd prefer this approach, rather than hastily rewriting a stable codebase in the coolest trendy language. 9 years is not that long for a programming language. PG's (in)famous eassy on Python Paradox [1] was written in 2004. By the time Python was 13 years old and it was still a "cool kid's language". [1]: http://www.paulgraham.com/pypar.html http://www.paulgraham.com/pypar.html