Personally I hate carpeting. It just gets too dirty underneath and no matter how much you clean it there is still a ton of dirt trapped beneath.
There are tons of inexpensive carpeting available check around and you may find something within your particular price point.
Also there are tons of vinyl flooring options that are affordable and beautiful. I am in the process of replacing some floors in my rental unit. I found some really affordable and beautiful options at Lowes. They even have a version that looks and feels like wood but truly isn't and it's not expensive at all.
Also note if you are going to put down the vinyl flooring get the extra adhesive. It really helps it to stick much better than what comes on the tile itself.
Use the money you do have to come up with options that fit your style and budget. Don't rule things out because you think you can't afford it. Look into it first and then see what you can afford and perhaps the gap between what you can afford and what you want doesn't exist or is just a small gap instead of the Grand Canyon.
Great success to you. I added a link for that vinyl wood floor from Lowes hope this helps:
http://www.lowes.com/pd_18920-61-A###-###-####_0__?produc...=