I like the wider bars as well. As said above, better control and great for climbing. I put 700mm enve composite bars on my 29er hardtail with a smaller 90mm Thomson stem and love it. I do believe that it is personal preference and the type of trails you ride. Smaller bars provides more reactive steering, to me on some of the smaller bars (25) and such it feels twitchy to me. However, i can see someone who rides in tight areas with a lot of switch backs/turning and minimal climbing (steep climbs) that would prefer shorter bars. Again, it is personal preference. If you like your current lenght run with it.