Last time I checked, all the hollow and semi-hollow bodies had piezo pickups in them. That's pretty much the only thing I don't care for in PRS. Keep the piezo only as an option and the direction is just right. Plenty of models for everyone.
Do you feel the installation of the piezo detracts from the guitar overall, or you just want to avoid paying for an unused option?
In the core line, all full hollowbodies come with a piezo. PRS obviously converted the "optional piezo" to standard because most of their orders included one, much like how many cars are not offered in Standard Transmission - it isn't worth carrying the low-demand variant. If you don't want to pay for it, I suspect at this stage it might be more expensive to order a HB without it!
In the core line, there are occasional non-piezo semi-hollow options like the Semi-hollow Cu24 from last year (or was it 2014?). But you can also go to the S2 line for semi-hollow Cu22, SC and Mira. And keep an eye out for Wood Library runs or other dealer special orders - sometimes semi-hollows are made without piezo.
And as mentioned, there are SE Semi-hollows with no piezo, including the current Zach Myers model.
Personally, though, having two piezo-equipped PRSi, given the option I will always get a piezo. Which is why the P245 SH is on my GAS list. Along with a nice HB II.