Will going to the gym once a week make a difference?

I've been working out for a while now at home every other day. I have an ez-curl bar with over 100lbs of plates, a set of 65lb dumbbells, and a set of 40lb dumbbells. I've been making steady progress, getting good size. I mostly do upper body workouts since my equipment is very limited. I want to start going to the gym once a week because I would like to hit some compound lifts with actual weight. I cant justify paying 30-40 dollars a month on a gym membership when I'm getting good progress at home. I've had memberships in the past but eventually I stop going and get stuck with a useless bill. Only reason I want to go to begin with is to work on my legs and my back. So my question is, would going to the gym once a week and working on some compound lifts benefit me in any way or no? keep in mind I'm not trying to be a professional body builder..

Where do you live? Not all gyms are 30-40 dollars a month. Actually, my gym is $10 for entry fee and $12/month.

[QUOTE=XCRunner9;1190918281]Where do you live? Not all gyms are 30-40 dollars a month. Actually, my gym is $10 for entry fee and $12/month.[/QUOTE]Harrisburg, pa. closest gym to my location is la fitness which is 99 to join and 29 monthly but like I said its not about the fee I Just wanna hit the heavy weights now and then n just keep doing my home workouts. kinda amusing listening to my co workers talking about hitting the gym all the time and im making better progress with dumbells..

Are there any other gyms close to LA Fitness? I do agree, LA Fitness's price is outrageous and isn't needed unless you like the extra chit that it offers.

You aren't going to make progress forever with what you have.