I don't know about you guys but I deal with 3 registrars and at one point in time was dealing with 6. I keep a very very detailed spreadsheet in order of expiry's but I got tired of dealing with that many registrars.
I finally whittled down to three and personally I hate coupon hunting and the idea of adding another registrar for a few domain coupons does not excite me. I have hundreds and hundreds of domains to manage and what I need is a registrar that gives me fair pricing on renewals without making me jump through hoops. It's great to get the new registration deals but I need fair and consistent renewal fees to consider switching.
My dream would be to have everything under one roof.... how sweet would that be.
