Rx 560 (Crossfire in future) vs 1050 ti

I was thinking of getting an Rx 560 right now and when the 560 goes on sale for a really good (and I mean good price, I can wait) price I can crossfire since there are 560s that support crossfire. I'm not really a hard core gamer and I want to keep costs low, also I don't like spending a lot of money at one time, I prefer spending over a longer period of time so that I always have money available. Would this be a viable option? I know that one card is better than two however if I can get one rx 560 for very cheap I think I can save some money in the long run. Thoughts?