I usually get an itch to trade/sale my truck every three to four years. With this one, every time I get an itch I add another mod. I am so far into it now that I really have no reason to trade it in for a new one because that would be a step backwards for me so I plan on keeping it for at least another five years. So far, mod list is up to around $9k, but at least $3k has been paid back since a few of the mods gained me an additional 2 mpg according to my aCar mileage recording app. The longer I keep it, the more these mods pay for themselves.