xxkcxx is right... perpetually cheating withdrawal ensures a longer sustained habit. Not that i do not do this myself lol... but it makes it much easier to stay the course on a life which is completely centered on drugs (particularly opiates but others too). This is the bad part.
But it is nearly impossible not to do for an addict with ready access to any form of bupe. I find that is only worth it if one stays disciplined during their "bupe breaks" and sticks with the bupe for an extended period of at least 5-7 days...
I mean, what is the point of doing dope/oxy/whatever a week or so on, then going thru all the trouble of taking a break with bupe, only to "stay clean" and use the bupe for a couple days?? There is no point, IMO. Plus doing this raises tolerance, especially if using high doses of bupe.
These days I make it a point to mostly take as low doses of bupe as possible (usually 2 mg or less) for at least a week... usually a couple weeks. So this way I am "mostly" clean, and I will occasionally take a 2-4 day break with some dope/oxy, then go back on my normal routine. Some may say it is not worth it and I am better off getting totally clean, but IMO this is how it should be done. I feel much more normal, and hopeful nowadays but still get to "get my fix" now and then!!