Can someone comment on this thought - there is a benefit NOT to renew H1-b,
--- No benefit, only employer saves the lawyer fees and BCIS fees for H1 renewal
so one can save the remaining time for future use (like in case I-140 or I-485 got denied), right?
----- Once I-140, I-485 filed it does not mean that your time on H1 is saved or stops for future use. If you are not on valid H1 status you cannot extend H1 status