Question about Cases

I have a tight budget and one of the cases I'm looking at is the Corsair 300R, but I see plenty of other cases recommended that are usually above $100, which is more than what I want to spend on a case (Budget is at 70-80 tops). Is there really a benefit in having a more expensive case? If there isn't, could you recommend me some other "budget" cases? Any help is appreciated.

Specs if you want 'em

Intel i7 2700k

EVGA 660ti Super Clocked GPU

Corsair HX 650w PSU

8 gigs of Crucial Ballistix (2 x 4gig 1600)

ASRock Z77 Extreme 4 Motherboard

Seagate 1TB 7,200 RPM HDD

Not related, is the HX 650w sufficient for my needs if I plan to overclock my CPU and use an H-100 for water cooling?

depends, often pricier cases have nicer features, such as hard drive docks, and are frequently stronger.

your psu will be fine.

Thanks for the help, I'm not too worried about hard drive docks or it being stronger but I do appreciate the information.

I would get the 300R and use the rest of the case budget for more fans.