If you love shopping for clothes, switching to a more minimal wardrobe might seem daunting. But, this doesn't mean you can't buy something new now and then. Buy a new top or bottom each season.
Some people actually buy a completely new wardrobe each year and donate or sell the previous year's wardrobe. This lets you have something new every year, but still keeps things simple. And, since you're not buying a lot of items, it's still cost effective. Consider going to thrift shops when you replace your wardrobe since it's a more sustainable option.