What welder should I buy, considering the diverse requirements and nuances associated with metalworking? With an abundance of options available in the market, ranging from MIG to TIG and stick welders, it can be quite perplexing to determine the best choice that aligns with my specific needs. Are there particular features I should prioritize, such as portability, ease of use, and the ability to weld various materials? Additionally, how significant is the power output in relation to the type of projects I intend to undertake? Should I consider the brand reputation and the after-sales service offered, or do personal recommendations hold more weight? Moreover, what budget constraints might dictate my decision-making process? Taking into account my skill level, should I invest in a more advanced model or stick with something more beginner-friendly? Ultimately, how do I ensure that my investment yields the best results for my intended applications?