My question would be - what are you using it for? I use gaffer's tape on my dance floor, as my dancers refuse to dance on vinyl dance floor tape. I provide the same style of tape for my ME, Head Carp, Prop Master and Audio Engineer: Shurtape PC 628. No one has complained about the tape on my staff, so I assume it's good for everything.
You can get the tape at two places at the lowest cost I could find -
West Coast: Southwesternbag.com
East Coast: jvconverting.com
Both offer great prices, though I personally use Southwesternbag (Los Angeles) as the shipping from PA was too much. However, as I look at their new site (which seems to be a bit under construction) JV Converting now has a Las Vegas shipping center. I'll be looking into that! Contact them and ask them to email you their PDF catalog since they don't have their Gaffers tape link up and running yet.