There are sources indicating it is a problem for a person who did not come to live in Eretz Yisroel in his lifetime to arrive in Eretz Yisroel for burial after his passing, and that with the exception of special tzaddikim, who are allowed to do this (זוה''ק פ' ויחי דף רכ"ו ע"א, דברי יואל פ' ויחי דף תקט''ו, שו''ת מנחת יצחק ח''ז סי' קל''ו, שו''ת שבט הלוי ח''ב סי' ר''ז, שו''ת דברי יציב יו''ד סי' רכ''ד), such people defile the land with their burial (ירושלמי כלאים פ''ט, ה''ג, זוה''ק שם ).
However, most poskim agree that while this is a problem, Eretz Yisroel’s quality of giving a kapara (above, 12) also gives a kapara for this, at least for a niftar who cherished Eretz Yisroel and yearned for it while he was alive (מהרשד''ם יו''ד ר "ג, אג "מ יו''ד ח''ג קנ "א ).
Coming while alive. For this reason, we find that some people as they age, come to Eretz Yisroel during their lifetime so that when the time comes, their neshama will leave them in Eretz Yisroel and they will be buried in Eretz Yisroel without an issue.
Buying a plot. However, it should be noted that when buying a plot in Eretz Yisroel, one should look into the type of kever he is buying, as he can easily be offered a burial plot not in accordance with the letter or spirit of the halacha, as will be explained below. Sometimes it is better to buy a plot in Chutz l’Aretz than to buy a plot in Eretz Yisroel of questionable kashrus for burial.
