Machine purchase help

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I currently have a Miller Dialarc 310 HF that I purchased about 6 years ago. It is water cooled and does not have a foot pedal. It has worked good for getting me started on tig welding, but lately I have been considering a more modern machine. I am a hobbyist, some months I am using the machine daily, other months I don’t use it at all. The Miller had worked great welding steel and stainless steel, but when it comes to aluminum I really struggle to produce a good looking weld. I understand my lack of experience is the biggest problem, but I’ve ran newer machines at trade shows and they seem to operate so much smoother. I have searched on here and google, and it seems to be a common debate, transformer vs inverter welders. The Miller is much bigger of a machine than I need. If I need to weld 1/2”, I don’t mind making multiple passes and letting the welder cool down. I am considering buying a Lincoln SquareWave 200 and selling my Miller. Can any of you folks chime in and maybe talk me out of it, or into it? Thanks!
Reply:If you do any stick welding, keep the dialarc for that.And as a back up if the Squarewave 200 fails.
Reply:Would the squarewave make welding aluminum easier to weld? Enough so to justify the $1800 for a hobbyist?
Reply:I have an old school transformer Lincoln 300/300. It is a beast. I also had a Precision Tig 275. It was also a beast. But they do not even compare. The Precision Tig was so much nicer to use. All the bells and whistles made my product better. But the point I am making is that maybe no need to compare Transformer to Inverter. Having said that, I think an inverter offers so much more in terms of arc control. The best Tiggers all have new machines, right? But before all this new tech, we were putting men on the moon with sine wave transformer welders. Would I consider 1800 a worthwhile investment for a hobbyist? Absolutely.Lincoln Power Mig 210MP MIGLincoln Power Mig 350MP - MIG and Push-PullLincoln TIG 300-300Lincoln Hobby-Weld 110v  Thanks JLAMESCK TIG TORCH, gas diffuser, pyrex cupThermal Dynamics Cutmaster 101My brain
Reply:

Originally Posted by Joker11

I have an old school transformer Lincoln 300/300. It is a beast. I also had a Precision Tig 275. It was also a beast. But they do not even compare. The Precision Tig was so much nicer to use. All the bells and whistles made my product better. But the point I am making is that maybe no need to compare Transformer to Inverter. Having said that, I think an inverter offers so much more in terms of arc control. The best Tiggers all have new machines, right? But before all this new tech, we were putting men on the moon with sine wave transformer welders. Would I consider 1800 a worthwhile investment for a hobbyist? Absolutely.