[quickben]

If the only thing one has is a DB connection and tables, maybe some stored procedures, it's irrelevant. Move freely between databases most of the time with minimal efforts.

You care in the case when your predecessors fell for the lock-in tricks. Database doing job scheduling, actual code in the database (SSIS and the rest), and thing like that.

[floopidydoopidy]

Be a hero and free your company from lock in, otherwise you'll be the next person referred to as "the predeccessor [who] fell for lock in".