I'm never sure if MSRP really applies to software, because the actual product just needs to be value for money. When I look at VSTi products I have a listen and judge what it can do for me, then try to match that to the price. Very often, it's just a tiny subset of the product that works for me. I bought the Kontakt package for lots of money and use a tiny proportion of it, but that tiny bit is good value to me, but most of the special offer products were actually worse because I only used a smaller proportion of the pruned down product.