At least at Maker Faire NYC they were cranking through in 5-7 minutes it felt like for the smaller tags (larger ones took longer). There was a several minute turnover between people. They told us it was nowhere near high quality, but I have to say, in the maple I got, it looks stunning (my son got walnut which also looked great). The ones we got were the luggage tags, if you look for in post on maker faire NYC you will see the link to the [PDF](/uploads/db6859/original/2X/a/ab946c55edba1b000c54459bd226738c40ece70e.pdf which had the templates for it which had the exact sizes.
Mine at Maker Faire Seattle took about 6 minutes and had a lot of detail. It was run at 235dpi (max is over 1000 - sorry, blanked on the actual number, but its been stated many times). Mine was walnut and looked great.
I can see where doing 225 lpi would make those projects under 5 minutes (to keep people interested and answer their questions), but how much cleaner or detailed would have 450 lpi or 900 lpi those same projects have been?
With those style of projects, would there have been a noticeable difference between a 450 versus a 900 resolution? Beyond the duration to make the projects at higher resolutions, how much difference will the recovery/reset for the Glowforge be by running projects at twice the lpi resolution?