Hot tubs are a great way to unwind after a hard day at work. Things to watch out for when buying are the following.
Cheap poor quality Chinese tubs, many have poor control systems, Even tho' they may have "CE" they may not have passed a true CE test. At 1200 letres of water and 240 volts / 30 or 40 Amps of electric... May not be all that safe.
Wooden Skirts (sides) these may look good on day one, but after a year of our UK weather they will not look new for long.
TV / CD / and other gagets. The main thing is to buy a good quality SPA.. why jazz it up with teles and things. Unless its a decent quality (purpose designed) for the job it will probably fail after a while as they are in a very harsh environemont with hot humid conditions.
YOU GET WHAT YOU PAY FOR............
£ 4,000 is the starting money for something decent.. you should get one mode with branded Microban / Lucite shell. 50+ jets, 3+ pumps etc.
Hope this points you in the right direction.......