Sorry, but I also will not to be purchasing Construct 3 now its gone the subscription route. For companies releasing lots of apps, its a bargain. However for hobbiest like myself, I just cant justify it. Was really looking forward to it too.
Unfortunately, the subscription will push people onto alternatives (such as GameMaker Studio 2 and various others) though I do understand Scirra decision to do it and create a steady income for themselves. I suspect they have already factored in losing a reasonably high percentage of users but I wish them the best. Construct really is an impressive tool.