Re: I have been a LEGO fan since I was born
I've only been a Lego fan since 2000. Hasn't stopped me filling my living room, however.
Pascal, try looking at different sets. E.g. the long running "Modular buildings" sets. They are loaded with regular parts that are easy to re-use, but are more interesting than plain bricks. E.g. bricks with mortar patterns, different colours, different kinds of connectors and decorations.
Sure, I've accumulated some specialty pieces I don't want - some of those eventually do get used, or I can trade them with other local Lego AFOLs (Adult Fan Of Lego). E.g. white partial cylinders I've used for a group of 4 white tanker train cars.
Another group of sets worthy of collection (at least by me) is the "Winter Village" sets, which are Christmas themed. This year's is the "Elf Clubhouse". These sets also have lots of useful pieces, although they do tend to like to use the little light bricks.
Some of our local fans *prefer* the stranger pieces for their own constructions. We have several who are huge Star Wars fans gobble up many that Lego produces. One of them has been slowing increasing in size his custom spaceship - made harder by him choosing to do it in yellow!