OK, here is your answer.
For $150 buy a new cartridge. That will have the biggest impact. Unless there is something wrong with the table or the pre you are not going to have much impact on those for the money. Not knowing the age of the cartridge or how many hours are on it the money is best spent there. They do wear out and are easily damaged so assume it is shot.
Now to the bigger question. It definitely is worth pursuing if you are eventually willing to invest more money. You are not going to get by on that budget if you want to stay in this for the long haul. You will need $150 or more to buy the supplies needed to clean the bargain records you want to buy.
There is something inherently "right" about analog that CDs can't do. I believe higher resolution digital can. Not to be dismissive but statements like "I heard vinyl in my buddies high end system and wasn't impressed" don't carry much weight because with all the variables we must assume something wasn't right about his set up. Too many of us have compared very high end CD to middle of the road vinyl and found the vinyl better in many ways, and the most important ways. If you want to listen to everything a high-end system can impress you with buy a CD player. If you want to listen to music and tap your toes buy a turntable.
For $150 buy a new cartridge. That will have the biggest impact. Unless there is something wrong with the table or the pre you are not going to have much impact on those for the money. Not knowing the age of the cartridge or how many hours are on it the money is best spent there. They do wear out and are easily damaged so assume it is shot.
Now to the bigger question. It definitely is worth pursuing if you are eventually willing to invest more money. You are not going to get by on that budget if you want to stay in this for the long haul. You will need $150 or more to buy the supplies needed to clean the bargain records you want to buy.
There is something inherently "right" about analog that CDs can't do. I believe higher resolution digital can. Not to be dismissive but statements like "I heard vinyl in my buddies high end system and wasn't impressed" don't carry much weight because with all the variables we must assume something wasn't right about his set up. Too many of us have compared very high end CD to middle of the road vinyl and found the vinyl better in many ways, and the most important ways. If you want to listen to everything a high-end system can impress you with buy a CD player. If you want to listen to music and tap your toes buy a turntable.