In all my years of toy shopping, I've never considered paying list price, (if at all possible to avoid), for any of the things I purchase. Since I'm not a religious person, I hold to the value system, "he who dies with the most toys wins".
So, for me, "MSRP" is ther place to start and work DOWN from, definitely not UP from it. Final answer..
In fact, I shop so constantly and vigorously, I think I was a trophy wife from the upper east side, in a former life. Either that, or roaming Rodeo Drive maxing out my husbands credit cards, while he was banging wannabe actress/nymphs at the daily casting call.