Exactly. It's the same principle as ripping off the band-aid. All the pain all at once.
Really though, suspension is usually slowly worn out rather than outright damaged by speedbumps, potholes and other road irregularities. But by all means, if you hit something extra hard, extra fast, you can definitely do pre-mature damage or accelerate the wear of shocks, bushings and various joints.
I've done all my own suspension work in the past and have only had "maintenance" level work - usually starting at 150K miles or so with things like ball joints and stabilizer bar links. Probably my best advice would be to stick to OEM parts. I've found that some of the cheapo stuff on RockAuto wears out quickly whereas OEM (at least in the case of Toyota/Lexus) is far superior in terms of quality and longevity.
Even in the cases where you have a mechanic do it, I'd insist on OEM, assuming your car is from a quality manufacturer. Aftermarket suspension parts can also become noisy sooner, even if they're not worn out.