Why?
There is nothing wrong with an occasional takeaway now and then as long as you don't have them all the time ... at a stretch I might average one a month but I can't even remember the last time I ordered one. The takeaways I use via the web are the same I'd use if I called them directly hence I am very happy with the quality.
And why lazy? ... it's no lazier than phoning up for a takeaway (and takes some of the possible communication issues out of the loop). If I were to physically go to the takeaway then it would be cold by the time I got home again (30-45mins walk) ... and with my eyesight you really don't want me to drive.
Oh and it's "you're" not "your"