Legacy is a special form of good: It means something actually works. Good software outlives its original programmers, great software outlives its original programmers and is still maintainable. You can only get to that level if you make a commitment up front that this software is going to stand the test of time, update your systems, don't get side tracked by fluff and eye candy and concentrate on what matters: the core business logic, at the expense of almost everything else. Do that and you stand a chance of avoiding the legacy trap.
A year of complacency and you have a year of catching up to do and you'll never get that year back unless you want to freeze development.