To take it even further; I would wager that I can tell you which of my 3x3x3s I'm playing with blindfolded. And I have at least 30 3x3x3s. If you're interested in hardware and you appreciate the different traits of cubes then speed is not important.
Sure, I can't dictate which cube a 10sec solver would be better off buying because I'm not on that level. But hey, the way a cube feels and performs at 30secs will not make that performance any better the faster you get. Probably worse.
If you're interested in something else than DaYan then consider the following cubes:
Alpha AV and AV-f
mf8 Legend (get prepared to be intimidated though)
Just don't expect too much from the above and you'll be fine.