You might be right. After Buddha I don't think I know anyone who has attained Nirvana practicing Buddhism (I might be wrong also). However, there are numerous people who have attained moksha practicing Hinduism in recent times. To name a few - Adi Shankaracharya, Meera bai, Sant Jnan Dev, Sant Tukaram, Swami Vivekananda, Swami Rama Krishna parama hamsa and the most recent Bhagawan Ramana Maharshi.
Meditation or Raja Yoga (as we call it in Hinduism) alone does not lead to Moksha, although it one essential final step. As long as one cannot let go of "I', there is no moksha or nirvana. Jeeva takes rebirth because of his vasanas. Hindusim contains the knowledge by means of which one can transcend this "I"ness or "ego" and exhaust the vasanas; but I really doubt if buddhism has that. Hinduism says one is NOT READY for exclusive Raja Yoga (path of meditation) unless one masters Karma Yoga. Through the path of karma yoga, one extinguishes the vasanas - evolves to go beyond all the desires and attachments to the fruits of action, thus losing the identity of "self". The "doer" of actions and "experiencier" of the results in you must not exist anymore. Again, it is not true that you cannot practice Raja Yoga until you have mastered Karma Yoga, they can be practiced parallelly.
One might argue that people like Ramana Maharshi or Buddha did not do karma yoga. I say, the jeeva in them had already evolved into a stage where they had no necessity of doing it. What is the point in feeding someone who is already full? Othersise, why would they give up everything in split of a second and go in the pursuit of the Truth with such intensity? Not everyone can do it. As long as you are a kid, you won't let go of your toy, even if someone snatches it away from you, you feel miserable...you have to mature to a state where it does not mean anything to you, then having the toy or not having it does not make any difference to you.
One who has mastered karma yoga can give up karmas - karma sanyasa. i.e physically dropping all the karmas. But, remember one who has not learnt how to drop the karmas mentally is not eligible to drop them physically. Karma sanyasa is the next step of karma Yoga.
Only to such person Raja Yoga yeilds results. The mirror has to be cleared of all the impurities first in order to see the true reflection. Without cleasing your mind of its ego and vasanas and other impurities like attachment, fear/insecurity, jealosy etc., it won't help how much ever meditation you do. Meditating also is nothing but doing a Karma. Because even by the end of meditation "I" am expecting/enjoying the result of my meditation, there is no liberation.