Great adviceThe prices on many ties have become absurd! Sam Hober's ties are fine quality, but more sanely priced.
In your situation, I'd get one wine colored, and one navy. While I have a fondness for wool, silk is likely the better choice for wear with most suits, and can still be worn with sport jackets.
Grenadine ties are very nice, but have become a fad. Nothing wrong with those if you wish it, but other choices are just as nice. You could get solid ties, but I'd be more tempted to get each with a simple white of grey stripe to avoid looking too somber in less formal use. They still will be suitable for almost everything, and easy to accessorize.
A tie should look rich, knot well and hang straight. IMHO, all else is superfluous, which is why I see little point in 7-fold ties and the like.