Gin is just vodka with flavor. I wouldn't drink vodka straight either, but I don't generally bother making mixed drinks with vodka anymore.
There's definitely a good variety of gins, too. Some have a much less "punch of pine tar in my mouth" level of juniper.
Gin .... is just vodka with flavor?
Let's set a few ground rules, here.
First, I concur- anyone who makes mixed drinks with with vodka is doing it wrong. And anyone who makes cocktails with vodka is a MONSTER. The whole ideal of vodka is that it is tasteless- everything else is just marketing hype. You might as well say, "Get some mixers and add the booze, 'cuz I like getting likkered up."
...don't get me wrong. I like getting likkered up too. BUT I'M CLASSY ABOUT IT. Vodka is class, but without the first two letters.
Second, there is no such thing as a gin martini. Martinis are GIN. If you make some other abomination, you're making a cocktail. And if you're making a vodka martini, you're making sewer water.
Third, everyone knows that a martini is only an excuse to drink chilled gin. All that "extra dry" or "extra extra dry" or "rinse the shaker with vermouth and pour it out" or "bow towards France" stuff? The whole point is to lower the amount of vermouth until it's a faint memory and you're drinking yummy yummy gin.
I've said my piece. And you know it to be true.