You like to build things, but Second Life has become too expensive or dramatic or stale or commercial for your taste, so you decide to move to open sim.
You've overcome the hurdle of being a noob again, you've found a region on a sympathetic and cheap grid, or set up your own minigrid and hooked it up to hypergridding. You've gone through an intense period of creating, facing the challenges of sourcing material away from the SL Marketplace, dealing with the maddening glitches that open sim likes to throw at builders, and kaboom - now you have a bunch of beautiful stuff on your sim.
You look up from your work and suddenly realize that Hey, this is not like SL where you can send out a notice in some spammy art or building group, pay a musician 6 or 7k Lindens, and throw a vernissage or housewarming party with 40 hot bodies to pat you on the back.