Ok all, I have a RealTek HD audio sound card, and I like to get a better one by this year or the next.

How would you rate this sound card? (1-5)

Plan to spend 50-75$ so give me suggestions.

What's a good sound card?
How do I install it?
Can I make my current sound card better in any way?
What are the perks of having a better sound card? (better sound obviously but what else?)