Hmmmm~
Good question!
No, I probably wouldn't as I usually do buy the volumes of series I really like, but then, how would I find what to like if I didn't have the wonderful opportunity to check them all out for free as I can now?
It'd be difficult and I would probably be forced to go to VIZ or an anime/manga news network and find them through there, I would NOT have read as many series/watched as many episodes as I have, well, if I didn't use some of the paysites where you can watch series for moneeeeeeeeh(albeit they usually don't have the same diversity as the free ones)!
Anyway, now that you ask, I'm sure it would be much more difficult to keep on doing it, which is kind of stupid in a way, since not as many series would get my support as they do now, neither would as many be enjoyed by me or others as they are now, which I think is the creators' intentions to begin with O^O
I mean, had they not discontinued the monthly JUMP we had here in my country, then that would have been a good way for me to find new series as I bought every copy and even wanted to buy the ones which I had missed, being late to notice they even existed(gotta mention that I didn't know about the free stuff here on the internet at the time(looooong time ago)).
Good lord I'm chatty today!!