I most likely would (depends on finances at the time).
Why?
I went to GA in Boston last tour - twice. One time the "cheap" GA tickets were so tough to find, I wound up paying close to $225 per ticket anyway! And my friend and I had to work, so we didn't get there until late. They didn't even scan us to see if we got in the oval!
So for that money, were were way in back in GA.
Then in Chicago, I waited outside all day. I didn't get into the oval. I was early though and got a spot very close to the railing (those were taken up FAST!). As the show went on, short people complained they couldn't see and kept asking if they could go in front of me. I got news for all the "height challenged" people - get to the fricking show early if you have GA.
Don't ask someone who has waited outside to "move" because you were unable to dedicate the time. If I do that again, be prepared to hear "f*ck off!" if you ask. But I digress. Being on the rail sucked. It was ridiculously hot, no room, constant pushing and my feet were killing me.
In Ireland I had GA again. I waited all day in the drizzling rain. The oval was big, so I was able to get in. But it was SO big that while a great view, I hardly was up front. And of course, slackers snuck in and pushed and pushed and pushed their way close to the front. I was about 6 "rows" of people from the stage when the concert started. Without moving, I shifted to about 12 "rows" of people by the time the concert was at the half-way point.
In contrast, I spend $200+ for an actual seat at another Boston show. I got this through my U2.com subscription. As a result, not only did I have an actual seat - meaning no pushing, no shoving, no short people asking me to move - but I was ridiculously close - closer than I was for any of the GA shows. Sure, I saw Adam walk by real close while in Chicago when I had GA. I saw Bono walk just as close many times with my seat in Boston. Plus, I didn't have to wait outside all day. And I was able to sit down before the concert started. I could get drinks and not worry about losing my place. I could use the bathroom and go right back to my place.
So, let's see... $250 for a "ticket vendor" GA ticket where I might not even get scanned for the lottery and if I do, not get into the "heart" or "oval" and then be pushed and shoved all day, or $250 for an actual seat where I'm not waiting all day and can relax, yet get just as good of a view.
Do what you want, but I know where I'm going.