Well a SSHD is not entirely superior. The thing is, you have to actually use it to take advantage of the SSD side. It will try to store the most frequent use applications on the SSD. However, you cannot control it. So let's say you want GTAV on the SSD, you have to play it alot for it to be on the SSD side. So it does work, just not how you want it to. The 7200RPM isn't a bad deal. It gets the job done, and it's only $50 for 1TB. Sure it adds about 10-20 seconds of extra loading, but if that's the only con, then it should still be considered.
All in all, I would avoid SSHDs and just get a SSD+HDD combo for $150. This will allow you to have a 250GB SDD and a 1TB hard drive.