I personally don't believe that repetition in electronic music even implies a sub-par track, but that's highly subjective of course, and we know where you stand.
Some of the most groundbreaking and beautiful music to me is found on the Basic Channel and Chain Reaction labels, with tracks that are extremely minimal and would probably sound repetitive to many listeners.
Plus 8 has a long history of incredible and innovative artists and tracks. It really depends on how you define electronic as well. If Chain Reaction is repetitive, Plus 8 less so, Warp less so, but even less are labels like Wax Trax! that had much more dynamic and traditional song structures from their artists (industrial). Do you consider them electronic? Subjective. Labels like Mo Wax delivered far less repetitive offerings than Warp artists, and just as compelling. Ghostly International takes takes us back to more traditional electronic offering if Mo Wax and Wax Trax! aren't 'electronic' enough for one's definition.
Really, there are just too many to name, even with the constraint of stripping out electronic music subjectively deemed 'repetitive'.
But I take your point though. Warp Records, especially at a particular time in electronic music's history, was one of those special and legendary labels that every genre seems to have one or two of. They were home to some of the most compelling and innovative artists of their generation, and rather than having just one or two, they were home to many. Might be the best electronic music label in history for strength of talent and how deep their roster went.
And I too have a lawn, but you don't need to get off it, -instead you can hang out on it and bring your vinyl. I've got a few crates of some incredibly good and rare discs and a 1200 on which to play them ;)