It would be helpful if that is, in fact, what you want. Owning a Mac is correlated with having more disposable income available, but that doesn't necessarily mean you want to get a costlier hotel room. I would hope they use other data points too, not just using a Mac, to decide whether the user would be amenable to pricier offers.
Owning a Mac is correlated with having more disposable income available
Or, owning a Mac may be positively correlated with having less disposable income, since the higher price of a Mac took more of your disposable income to purchase.
With e-commerce it only makes sense to put the best-fit offers in the front of the store, for everyone involved.