Depends what you are want, and how you look at it. Higher specs can add considerably to the cost…. Choose specs to suit your needs rather then your desire.
My first base model Mac Mini set me back about 25,000 baht ($US 738) at today's exchange rate) in 2005. Add on another 4,000 to licence Office for Mac) at the total was up to 29,000 baht…… A plate of fried rice could be had for 25 baht back then.
For my 2009 Mac Mini it was also about 29,000 baht, all up, but came with better specs….. 24,000 for the base model and 5,000 baht for iWork. An upgrade to OS X 10 and an additional 4 GB of RAM 4 years on cost another 5,000 baht. An acquaintance had a spare copy of Office for Mac, which I got for free, but seldom use. Pages, Numbers and occasionally Keynote are fine for me…… A plate of fried rice was up to about 30 baht in 2009.
Nowadays a base model Mac Mini (4GB RAM and 500GB HDD) can be had for 19,000 baht, and the mid range (8GB RAM and 1TB HDD) is about 26,000 baht. They all come with the latest version of Mac OS and iWork apps, with updates being free…… A plate of fried rice currently kicks in at about 50 baht…… My pay has gone up just 12% over the same dozen years!
Looks like better value for money to me, though it does depend on your basis of comparison. Other computers can be had for less, but add 5,000 baht baht for Windows 10 and 6,000 baht for Office (about $325 all up). Sure, Linux OS and some alternative productivity apps can be had for free, if you don't mind a few hassles that come with them.
And to answer your thread title question, the Mac Mini is still on sale, and Apple has indicted that it will be updated.