This is something I've never really considered due to lack of aftercare, possible quality issues, etc. I had seen frames I like for £190 (inc. lenses) in a Vision Express store - this didn't seem too expensive as I've certainly paid more for complete glasses in the past. I had a quick Google and found a few online companies selling the same glasses for £70-£80.
That's a big effing difference! I now feel like I would be a bit of a mug to pay the instore price.
Has anyone bought complete glasses online and would you do it again?