Question regarding rosin

So i recently started back smoking after a decade of very heavy use. Took a 4-5 week tbreak because I just wasnt getting high anymore. Well this go around im going to try to stick to solventless concentrates. That being said, how big is the difference between a rosin AIO compared to some cold cure rosin and a device like the yocan elvolve plus xl. Are the rosin AIO's just expensive because of the portability? Or do they give a better high/taste? Ive had every concentrate except for rosin because I was too cheap to ever buy it, so forgive me if my questiond are a little stupid. So basically would I be better off with a .5g rosin AIO for $30ish or 1 gram of cold cure for $40ish and use the yocan elvolve? What's the difference? other than price of course