I havent bought a pre built PC for years. Probably around 7-8 years actually. Im also picky about what goes in mine. It all helps in this line of work as well. Never really did web design but have built PC's , networks etc many times. It all helps
Your probably right about 5/10 ops people with interests such as these i find a lot of the people i work with have similar ones, from tech stuff to aviation to god knows what other obscurities
