There is nothing new under the sun, just updates. Kevin Spacey's performance as Frank Underwood, in House of Cards seems as fresh as anything out there, but as you're probably aware it's a performance based heavily on the one given by the original star of the original series, the late great Scottish actor Ian Richardson.
I've have mixed success watching other versions of the same shows. I bought a DVD copy (those words seem strangely old-fashioned now, like making a mix tape or fondue) of the Danish series The Killing, but lent it a friend and got stuck into the American remake in the meantime. I liked the American version and found it hard going back over the same ground. I did manage to crack back into series two and three of the Scandi-noir, but I was partially ruined. The Tunnel, which just finished a run on SoHo, lacked a little of what made the original Bron/Broen aka The Bridge so good (most notably the title song), but it more than made up for it with brilliant casting, acting and some subtle script tweaking.
While The Bridge was focused on a murder on the boarder of Denmark and Sweden - The Tunnel is on the UK/France border, which is in the middle of the Channel Tunnel. I tuned in thinking I would see a few episodes but stayed with it, even coming to the conclusion that it improved in many ways on the original - something a recent US remake, set on the Mexican border, failed miserably to do. (BTW I've sent a proposal to TVNZ for a remake called Ladies Mile involving the Remuera and Mt Wellington border, but haven't heard anything back.)
There's no such issue with going back to the original UK version of House of Cards as I did last weekend; it slipped down like something slippery and pleasurable. This time I did not buy a DVD; I found it online, but there are DVDs out there on Ebay and the like. I have a vague memory of watching it as a kid, but was worried it may not have held up. I was wrong, and thanks to an interview with the author on Kathryn Ryan's RNZ National show, I now know why it was - and remains - so good.