Considering that men wear mostly blue shirts, it makes sense to buy the cuff links with the blue stripes. The cuff links with the dark red/maroon stripes are a bit more difficult to mix with the rest of the outfit. For both of them I would avoid wearing a solid tie, because the cuff links would draw all the attention, and would put you in the famous category of trying too hard
. However, if you know how to combine different patterns, then most people will see it as a sign of your sofistication. This kind of cuff links is available in many men clothing outfits, therefore it wouldn't be neccessary to buy them from internet. I hope for that prize you find the sterling silver ones(not silver plated). You might have a bit of a cuff link fetish, therefore if you are very tempted better yield to it.
I had never seen this type of striped links in a shop in Paris. I guess they are sterling silver. Thanks to euros and my friend Ken who will bring me them from US the price will not be so high = 80 euros When you see that a pair of simple Dunhill in silver is at least 173 euros it seems fair to pay 80 euros.