For sure. But Microsoft gave base owners a far bigger incentive to upgrade than Sony did.
Also agree with this. Great design, its smaller, much more powerful than base model, 4k UHD, and with a clear commitment to update first party to 4k with lot of 3rd party support. Price is the only downside, but weighing specs and value proposition, the X is a very tempting path for current owners and new 4k users.