You won't get all the benefits of a high end rod if you're only willing to swim budget baits. Also, if you're planning on landing a couple of kings a budget rod will prob suffice, 20-50 kings in a day, then a high end rod will absorb alot more of the hurt, and will better attract the bigger models (using high end lures), of course this only comes after practice, and with all types of fishing, some days nothing will work.
Of course how often it'll be used is a consideration, a $1000 rod used 40 times in a season is far better value then a $500 rod used twice.
If you plan on getting serious, get serious gear, the best in the sport use the best gear, and that's no coincidence.