I inherited an old kit-built Tiger 2 from a buddy of mine my very first year in the hobby. I'm still flying it regularly, and my buddy who gave it to me can't believe the plane is still holding together. He swears it will just come apart in mid-flight one day as the 20-year old epoxy finally gives out, but so far this old bird hasn't missed a beat. I had it recovered a few years ago, and it's a big hit with folks in Cincinnati now.
I have a Tiger 2 ARF that I've flown as well, it needs a little bit of work and I'm thinking about putting lights all over it and making it a night flyer. The Tiger 2 is so predictable and stable that I think it would be a good choice. The ARF isn't so nice that I'd be overly upset about losing it if I'm wrong.
I also have a Protégé 60 ARF that Goldberg was shipping shortly before Hobbico acquired them. It's a wonderful airplane, basically a high wing version of the Tiger 60, that flies beautifully and displays well in the air with the factory trim scheme. I like it so much that I quit flying it with students.
As long as Goldberg designs are sold only as kits, model building will continue by necessity.