Same here ^^
I have had some success in finishing builds but the temptation the fettle is hard to shake. I should just sell the builds I have had in boxes for years, but I just can't seem to, plus then so.etching nice comes along.
So far this year I've finished an sts, a dynatech and rejigged my rts. Working on a modern pipedream, have a nuke proof reactor on the way, and have 3 builds in boxes, plus a stash large enough to sink a ship.
Good advice about finishing a build though, just ride it once done, unlike me.