And your Hackintosh will crash, make noise and draw too much power. To an increasingly large segment of the market, these cons far outweigh the possibility of a RAM upgrade.
Building a Hackintosh has been hassle free for a good while now. I've been running mine since Lion (2011).
But anyway, I don't care about the "increasingly large segment of the market". I care about me. So I don't know why you're fluttering about.
No crashes. Noise and power consumption are dependent on what hardware you pick. I was waiting for the new Minis but seeing them I think I'll just keep my i3, RAM, SDD and get a smaller form factor motherboard and keep using the hackintosh.