Depends on what kind of a game your after...
And it really comes down to you, it's not our choice..
But since you asked if it was a good game I shall intrigue you to no end.
Morrowind +'s:
-Great graphics, they're not like OB great but they have a more fantasy feel to them..
-No leveled lists, you can fight any creature at any level, i.e you can fight a Golden Saint at level one, you will get owned,
BUT you can still fight it.
-It's much 'bigger' than most games, not just by the landmass size (though even thats big!) the diversity with which all the NPC's have is wonderful! and only gets better with mods.
-RP I found easier in Morrowind
-The scenery is much more fantasy style with gigantic mushrooms in some places, or you could go to the Bitter Coast (my fav spot) and explore the smugglers lairs.
-The weather owns... Thunder storms are GREAT especially at night

-The whole omg I'm a newb feel is in your face from the beginning.. You may not like that but it re-enforces the movie from the beginning.
-Just awesome and great fun. If you are going to get it for your birthday, then do so!
-It's cheap even with both expansions (like $10 Aussie, so even cheaper state side)
-Lots of guilds/factions
-You get to kill a 'god' lol.... Stupid Vivec..
-So much content, lots of hidden caves, grotto's, shrines etc.
Morrowind -'s:
-Poor combat system.. Sadly there is no option to block, it just happens based on skill.
-Magic is a pain, you can't hold your weapon and cast..
-No decent physics
-Heavy on lag on slower/older machines
-Some people don't like the older graphics
Thats about all I can think of..
My advice,
Get it.Really it is a great game and I have been playing for ages.. XD
I hope this helped!!