I'd have thought that the performance of a real syno box and an xpe build of the same spec should be pretty similar, but that aside, I don't think its a fair comparison. I think people who buy a real syno box are doing so because they want a 'simple' integrated NAS solution, hardware and warranty support and a good feature set. Not everyone has the skills to setup an XPE/DSM system especially when they run in to compatibility problems. I run real syno, XPE/DSM, xigmanas and openmedia vault systems. Xigmanas is the probably the 'fastest', but most complicated to setup, OMV next, XPE/DSM next. Like you I prefer the DSM interface and features so 'put up' with the reduced performance from what I know I could probably have. I'm just grateful for the Devs that have made XPE/DSM a possibility, if that comes to an end then then its another solution - something not faced with a real syno box.