DIY furniture is not cheap compared with mass-produced even without considering time, so giving up the hobby is a sound financial decision. For huge cost savings, there is a large market of used furniture available private-party.

Edit: Hobbies certainly aren't practical, but there is often a practical aspect associated with them used as a justification, e.g. for having fresher vegetables or unusual varieties not sold in a supermarket/co-op. I bring up cost with woodworking as it's a notoriously expensive hobby, especially second-order costs such as the decision to own a single-family home or a larger vehicle.