I love IPA's and always have some version of a hoppy beer on tap (IPA, IIPA, CDA or ISA). But as I have gotten more and more into the hobby it has really caused me to branch out and appreciate other styles. Some ones that I brew regularly are a Blonde, Scottish Style Ale and an American Wheat. I kind of operate my homebrewery like an actual brewery where I am trying to nail down 4-6 signature beers of varied styles.
I've also been tweaking a Chocolate Espresso Imperial Stout trying to find that point of subtlety with that adjuncts where it balances well with the malts and hops, rather than overpowering them. I don't get a chance to brew it that often due to the long aging time and the fact I generally only have a couple pints of it week.
When choosing which styles to brew outside of IPA's, I like having a drinkable/sessionable option on tap, especially on brew days where too much RDWHAHB-ing can cause "issues." Also you can poll your friends/relatives/coworkers about which styles they like so not only can help you drink some of the beer, but also (hopefully) give you candied feedback about your brews. Then of course seasonal options are a fun way to branch out your pipeline.