The link's in my profile (not sure what the rules on self-linking are here!)

I get between 45 and 50k page views a month, which isn't exactly crazy traffic - I think the affiliate link in question did well because it was a) part of a very enthusiastic review of a pretty obscure product and b) the post was linked to/reblogged on Tumblr by much more popular sites.

It's certainly made me rethink my plan to put adverts on the site - hard to say without testing, but past experience with Google Ads makes me think the occasional hardware review/affiliate link would be better for me, in terms of earning some cash for all the work I put in, and better for my readers (no intrusive ads, and a good post is a good post whether it has an affiliate link in it or not).