Dont buy a console for just one game. Trust me on this one.
Even moreso if you're buying it just based on some footage you saw. I've played ALOT of fighting games. SF, in it's current incarnation... isnt exactly the best of them. You've got about 5 billionty other options you could go for, most of which are better.
Also, dont forget, Capcom has now succumbed to the same hyper-greed that most of the other big publishers have.
If you want ALL of the characters? It'll cost you another $60. If you want all of the characters AND all of the other content like costumes and whatever? Looking at their DLC (as I type this), the price for EVERYTHING together comes down to just a bit over $200 (for ONE game, remember). And just to point out HOW greedy they've gotten: All of that "other content" I mentioned? It's almost entirely costumes. Yet it jumps the price up from $120 (default game + all 3 character season passes) to just over 200. That's an additional 80. For COSTUMES. And the missing characters? There's 18 of them. 18!!! Divided into those 3 stupid "season passes".
Now, this is all in the currency used in the US, where I'm at. I dont believe you are in the US, yeah? But you can of course easily convert any of this to whatever currency you are using. $60 is the default price for AAA games where I'm at. So you know this is alot of money.
However, no matter what you're using, I dont think it's a good idea to support a game that, if you want everything in it, costs THREE TIMES the normal price for a AAA game. And believe me... that's only the start. Hell, even if you just want all the characters it's twice the normal cost.
Besides: This is a fighting game, and a VERY technical one. As someone who has been into this genre for a VERY long time and has been put through the grinder over and over and over, I strongly, STRONGLY recommend not picking this up unless you have ALOT of time to dedicate to it. And even then, only if you're SURE you're going to stick to it for the hundreds of hours (of frustration and repetition) that it takes. It takes a LONG time to even BEGIN to get good.... and even then, fight a skilled opponent, and you'll find you're nowhere near "good" yet. Most players will never get that far.
And if you're buying this to play it singleplayer? Ye gods, dont! Fighting games are NOT made for that, and this game has even less singleplayer content to it than most... which is quite the accomplishment.
If you really want to try out some fighting games, buy... basically any other freaking thing (but research it first! This game isnt the only one in the genre doing this right now!). Hell, buy a version of Street Fighter 4. It's still hyper-technical and INCREDIBLY time-gobbling and the singleplayer experience is still crappy, and frankly I get the impression you wont like it much (or 5 for that matter), but it's not going to hide most of it's content behind a ridiculous paywall.
Yeah. Dont do it. It's SERIOUSLY not worth the money.
It's your decision in the end, but... you've been warned.