The collectability paradox

One question I am often asked is why I buy collectable models only to destroy their originality by repainting or converting them, as surely that is a waste of a rare and valuable collectors' item and I'm losing a large sum of my hard-earned money in the process. I approach my collecting with a healthy dose of realism so I justify it purely as an interest that makes me happy and not one that makes me money, and it is taking a common mass-produced model and creating something personal and unique from it that gives me most pleasure. Sadly for those who believe the hype, logic dictates it is very rarely the case that something advertised as a 'collectors' item' will ever actually become collectable, and buying these models as an investment is extremely unlikely to pay off.