To me match length isnt really a concern. The benefits of a long match to me, if done well, are the payoffs from earlier in the feud or even just earlier in the match. If say a leg is being worked over repeatedly and is sold very well then at about the 30 minute mark the wrestler isnt able to perform a standard move or finisher and it costs him the match then to me that length of time helped tell that story. Another benefit of having a longer match is to show the fatigue of the wrestlers and how much despiration is being put into every move or spot. An hour long draw if done well continues feuds and storylines very easily. However a match doesnt have to be long to be great. If the wrestlers involved are good at a fast paced sprint type of match and can still tell some what of a story without it coming off as a rushed spotfest than that to me is great as well. Take Owen/Kid from KOR 94 for example. A very fast paced match and might have been under 6 minutes. I was blown away by it and to me it definitely felt longer which means they did enough to suck me in during that short period of time. I always thought guys like Malenko and Mysterio would have great short tv matches with each other as well. Chemistry is more than likely the key component to a great short match. I'm sure there are many under 10 minute matches i consider to be great but thats just me.