Not all of us work with prototypes someone will rewrite later on. Design a high traffic, low budget site with Django, and you will quickly understand the trade offs. It's not all about less coding effort; in most dev positions that matter, your work is cheap compared to the runtime cost - eg. optimizing something to take 10% less has the potential to shave multiple times your salary off the global cost pool.
Not all of us work with prototypes someone will rewrite later on. Design a high traffic, low budget site with Django, and you will quickly understand the trade offs. It's not all about less coding effort; in most dev positions that matter, your work is cheap compared to the runtime cost - eg. optimizing something to take 10% less has the potential to shave multiple times your salary off the global cost pool.