I keep all the stuff I buy.
With the exception of upgrading a device. 3DS to 3DSxl or a newer graphicscard... I will sell those and get a better one. But devices with no upgrades will be kept.
Intel Core i7 8700K | 32 GB DDR 4 PC 3200 | ROG STRIX Z370-F Gaming | RTX 3090 FE| Crappy Monitor| HTC Vive Pro :3