Homebrew PCBs

After 2.5 years on this list, I'm coming close to using up my second single-sided 15x15cm FR4 blank. And while the prices at the local hobby electronics place aren't too bad (especially given that I go thru one per year), they're not that handily situated, so I'm thinking about getting some from ebay - five blanks for what I pay for one and delivered to my door.

Broadly, there seem to be two categories: various "miscellaneous" small sellers; and one outfit from Canada. The Canadian operation seems quite reasonably priced and is offering all sorts on intriguing thicknesses (incl some of that faster-etching 0.5oz stuff).

As with a lot of stuff on eBay, it's so cheap I could just go ahead and order from a few sellers, but I thought I'd see if there were any experiences here.

TIA

PG