You're going to pay an arm and a leg for Lakers tickets. The atmosphere is very exciting, but once the final whistle blows it's just another regular season game. So if budget is an issue I would suggest you get a lower demand game with better seats.
Ebay will be your best bet for a good price, but make sure to look for auctions and not fixed price posting which will be just as inflated as Stub Hub and Ace Tickets.
They definitely cost a lot more. My ex paid like $150 a ticket (she got them on Stubhub. I definitely trust them and Ticketexchange, can't vouch for craigslist and wouldn't use them as a first option) for corner balcony tickets to the game last January. But I think the atmosphere is different. I was surprised at how into it everyone was. It was my first game in the Garden so I was gonna be stoked it they were playing the Raptors and were up by 30 at halftime. But everyone was reacting to every bucket, every whistle, every turnover.
I was just mad that non-MA residents have to be 25 to drink. I was 24 and upset about that (pre-gamed at the bar across the street, but it was an afternoon game so couldn't get that many in). Next time I go I don't think I will drink there for spite.
Again, I have nothing to compare it to other than Celtics games in NY/NJ, where I sometimes see Nets fans dozing off during the game. In Boston, it felt like a playoff game.
What I would suggest is going to a huge game like LA or Miami, or seeing two games in one trip for the same price, which is what I may do later this season.